Upgrade layer versions to fix brefphp#975

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Fix regression in Serverless that caused the plugin to fail

> TypeError: Cannot read property 'bref' of undefined

Merge pull request brefphp#927 from chapeupreto/patch-1

fix typo

Merge pull request brefphp#919 from tomcant/master

Fix regression introduced in brefphp#903 relating to process timeouts

Add sponsor

Merge pull request brefphp#891 from gogaille/fix-docker-push

fix: docker push

Start migrating away from Google Analytics to privacy-friendly Plausible

Update layer versions