Build: Bump fastavro from 1.12.1 to 1.12.2

Bumps [fastavro](https://github.com/fastavro/fastavro) from 1.12.1 to 1.12.2.
- [Release notes](https://github.com/fastavro/fastavro/releases)
- [Changelog](https://github.com/fastavro/fastavro/blob/master/ChangeLog)
- [Commits](fastavro/fastavro@1.12.1...1.12.2)

---
updated-dependencies:
- dependency-name: fastavro
  dependency-version: 1.12.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -105,7 +105,7 @@ dev = [
     "pytest-checkdocs==2.14.0",
     "prek>=0.2.1,<0.4",
     "pytest-lazy-fixtures==1.4.0",
-    "fastavro==1.12.1",
+    "fastavro==1.12.2",
     "coverage[toml]>=7.4.2,<8",
     "requests-mock==1.12.1",
     "moto[server]>=5.0.2,<6",