fix(release): close superseded Scoop-bump PRs before opening a new one

[marianogappa]

Back-to-back releases can leave an older Scoop-bump PR with a stalled auto-merge; the release workflow now closes any open chore/scoop-bump-* PR before opening the new one, preventing a stale bump from later regressing the manifest.

[github-actions]

🔻 Coverage below the badge

make coverage reports 80.7% (hand-written code; generated code excluded), below the README badge of 81%.

Either add tests, or update the badge: scripts/update-readme-coverage.sh 80.7.

[github-actions]

📊 Ingestion benchmark (base → PR)

Corpus: internal/patterns/markers/testdata/replays · 3 samples · GitHub-hosted 2-core runner. Informational only — runner variance is ±10–20%, so a small delta is noise.

goos: linux
goarch: amd64
pkg: github.com/marianogappa/screpdb/internal/storage
cpu: AMD EPYC 7763 64-Core Processor                
                        │ bench-base.txt │       bench-current.txt        │
                        │     sec/op     │   sec/op     vs base           │
SQLiteIngestionCorpus-4      34.97 ± ∞ ¹   35.13 ± ∞ ¹  ~ (p=0.700 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │       bench-current.txt        │
                        │     s/cmds     │   s/cmds     vs base           │
SQLiteIngestionCorpus-4      27.81 ± ∞ ¹   27.95 ± ∞ ¹  ~ (p=0.700 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt        │
                        │    s/commit    │   s/commit    vs base           │
SQLiteIngestionCorpus-4     349.3m ± ∞ ¹   357.2m ± ∞ ¹  ~ (p=0.200 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt        │
                        │    s/events    │   s/events    vs base           │
SQLiteIngestionCorpus-4     104.7m ± ∞ ¹   107.8m ± ∞ ¹  ~ (p=0.700 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │   bench-base.txt    │           bench-current.txt            │
                        │ s/ingest_166replays │ s/ingest_166replays  vs base           │
SQLiteIngestionCorpus-4           34.93 ± ∞ ¹           35.10 ± ∞ ¹  ~ (p=0.700 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │       bench-current.txt        │
                        │    s/parse     │   s/parse    vs base           │
SQLiteIngestionCorpus-4      4.858 ± ∞ ¹   4.855 ± ∞ ¹  ~ (p=0.700 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt        │
                        │   s/patterns   │  s/patterns   vs base           │
SQLiteIngestionCorpus-4     88.77m ± ∞ ¹   90.08m ± ∞ ¹  ~ (p=0.700 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt        │
                        │   s/players    │  s/players    vs base           │
SQLiteIngestionCorpus-4     49.04m ± ∞ ¹   49.53m ± ∞ ¹  ~ (p=1.000 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt        │
                        │    s/replay    │   s/replay    vs base           │
SQLiteIngestionCorpus-4     210.4m ± ∞ ¹   211.4m ± ∞ ¹  ~ (p=0.600 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt        │
                        │  s/replay_ins  │ s/replay_ins  vs base           │
SQLiteIngestionCorpus-4     21.47m ± ∞ ¹   21.53m ± ∞ ¹  ~ (p=0.500 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt         │
                        │      B/op      │     B/op       vs base           │
SQLiteIngestionCorpus-4    2.531Gi ± ∞ ¹   2.531Gi ± ∞ ¹  ~ (p=0.700 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05

                        │ bench-base.txt │        bench-current.txt        │
                        │   allocs/op    │  allocs/op    vs base           │
SQLiteIngestionCorpus-4     22.33M ± ∞ ¹   22.33M ± ∞ ¹  ~ (p=1.000 n=3) ²
¹ need >= 6 samples for confidence interval at level 0.95
² need >= 4 samples to detect a difference at alpha level 0.05