minor #15247 Show logs from php-builder (Nyholm)

This PR was squashed before being merged into the 4.4 branch.

Discussion
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Show logs from php-builder

This will be a super good addition if you want to see any errors from the php builder

Commits
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31a1513 Show logs from php-builder

Author: javiereguiluz

.github/workflows/ci.yaml

@@ -73,6 +73,10 @@ jobs:
                 working-directory: _build
                 run: php build.php -vvv
 
+            -   name: Show log file
+                if: ${{ always() }}
+                run: cat _build/logs.txt || true
+
     doctor-rst:
         name: Lint (DOCtor-RST)