chore(deps): Bump sha2 from 0.10.9 to 0.11.0

[dependabot]

Bumps sha2 from 0.10.9 to 0.11.0.

Commits

• ffe0939 Release sha2 0.11.0 (#806)
• 8991b65 Use the standard order of the [package] section fields (#807)
• 3d2bc57 sha2: refactor backends (#802)
• faa55fb sha3: bump keccak to v0.2 (#803)
• d3e6489 sha3 v0.11.0-rc.9 (#801)
• bbf6f51 sha2: tweak backend docs (#800)
• 155dbbf sha3: add default value for the DS generic parameter on TurboShake128/256...
• ed514f2 Use published version of keccak v0.2 (#799)
• 702bcd8 Migrate to closure-based keccak (#796)
• 827c043 sha3 v0.11.0-rc.8 (#794)
• Additional commits viewable in compare view

[praxis-bot]

Medium: digest trait major version bump. sha2 0.11.0 pulls in digest 0.11.x (up from 0.10.x), which switches the internal buffer representation from generic-array to hybrid-array. If the operator uses sha2::Digest trait methods directly or passes digest output types to other crates still on digest 0.10.x, the API will be incompatible. Verify the operator compiles cleanly with this bump before merging.

Also: this PR includes unrelated changes to docs/proposals.md and deletes docs/proposals/template.md -- these should be in a separate PR.

[praxis-bot]

This is a breaking major version bump. The underlying digest crate changes from 0.10.x to 0.11.x (generic-array to hybrid-array). Verify all code using sha2::Sha256 and digest::Digest trait methods compiles with the new version before merging.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.