ci: add check to ensure composer-bin is not accidentally committed

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

Author: kesselb

.github/workflows/autocheckers.yml

@@ -36,6 +36,7 @@ jobs:
               - 'composer.json'
               - 'composer.lock'
               - '**.php'
+              - build/autoloaderchecker.sh
 
   autoloader:
     runs-on: ubuntu-latest

build/autoloaderchecker.sh

@@ -34,6 +34,13 @@ echo
 echo "Regenerating main autoloader"
 $COMPOSER_COMMAND dump-autoload -d $REPODIR
 
+FOUND_COMPOSER_BIN=$(grep --recursive --fixed-strings 'Bamarni\\Composer\\Bin' $REPODIR/lib/composer/composer/)
+if [ -n "$FOUND_COMPOSER_BIN" ]; then
+    echo "The main autoloader contains the composer bin plugin"
+    echo "Run composer again with --no-dev and commit the result"
+    exit 1
+fi
+
 for app in ${REPODIR}/apps/*; do
 	if git check-ignore ${app} -q ; then
 		echo