Output log on failure

Author: Greg Bowler

action.yml

@@ -77,7 +77,7 @@ runs:
         ACTION_ARGS: ${{ inputs.args }}
       id: phpstan_run
       run: bash <(curl -s https://raw.githubusercontent.com/php-actions/php-build/cc563958b37b62874df04de865e5e9c6d8bb93dd/php-build.bash) phpunit \
-        && ${{ github.action_path }}/phpstan-action.bash
+        && ${{ github.action_path }}/phpstan-action.bash || cat ${{ github.action_path }}/output.log
       shell: bash
 
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