fix(entrypoint.sh): remove signing commits

Only sign tags. It may be that `commitizen` only supports signing tags.

See: commitizen-tools/commitizen#616

Author: Hendry, Adam

entrypoint.sh

@@ -20,7 +20,7 @@ if [[ $INPUT_GPG_SIGN == 'true' ]]; then
     exit 2
   fi
   echo "Configuring GPG for signing commits and tags..."
-  git config --local commit.gpgsign true
+  git config --local commit.gpgsign false
   git config --local tag.gpgsign true
   git config --local user.signingkey "${INPUT_GIT_SIGNINGKEY}"
   echo "Git sign commits?: $(git config --get commit.gpgsign)"