Prepare release v250

[heroku-linguist]

Commits since the last release:

• Adjust capitalisation of generated changelog entry title (Adjust capitalisation of generated changelog entry title #712)
• Bump the test-dependencies group with 2 updates
• Bump twig/twig
• Use venv for Python/Pip in build Dockerfiles
• Python 3.12 compat for mkrepo.sh
• Python 3.12 compat for manifest.py
• Python 3.12 compat for sync.sh
• quoting fixes for manifest.sh
• quoting fixes in deploy.sh
• Remove "s3." prefix from S3_REGION builds env var
• Bump bob-builder to 0.0.20 for Python 3.12 compat
• Merge pull request Python 3.12 compatibility for build tooling #715 from heroku/python312-compat
• Install s5cmd in Dockerfiles (and CI)
• Use s5cmd in manifest.sh
• Use s5cmd in mkrepo.sh
• Drop S3_BUCKET/S3_PREFIX args from mkrepo.sh and auto-detect S3_REGION
• Rewrite sync.sh on top of s5cmd
• Tests for sync.py (and thus sync.sh)
• Rewrite remove.sh to use sync.sh internally
• Support full repository removals in sync.sh
• Drop s3cmd dependency
• small cleanup to GHA job summary output of syncs
• Fix docopt bdist_wheel errors on build Dockerfile builds
• Merge pull request Port all binary build tooling to s5cmd, add sync tests, simplify removals #716 from heroku/s5cmd
• PHP/8.1.28
• PHP/8.2.19
• PHP/8.3.6
• ext-newrelic/10.20.0.10
• ext-mongodb/1.19.0
• ext-phalcon/5.7.0
• ext-blackfire/1.92.17
• Composer/2.7.6
• Blackfire/2.28.3
• ext-mongodb/1.19.1
• Merge pull request May 2024 PHP updates #718 from heroku/develop

For the full diff, see the compare view:
v249...main