fix: the access to the config file

The fix changes the permissions from 600 (owner-only) to 644 (owner read/write, group/others read). This allows the container to read the config file while still
  maintaining reasonable security - the file is only readable, not writable by others, and it gets cleaned up immediately after use.

  The security is still maintained because:
  1. The file is created with a unique name using ${{ github.run_id }}
  2. It's cleaned up immediately after the container execution
  3. The cleanup happens even on failure with ${{ always() }}
  4. The file only exists briefly during action execution

  This should resolve the permission denied error you encountered.

Author: davidB

action.yml

@@ -37,11 +37,12 @@ runs:
       shell: bash
       if: ${{ inputs.config != '' }}
       run: |
-        # Create config file with restrictive permissions
-        umask 077
+        # Create config file with readable permissions for container
         cat > .cdviz-config-${{ github.run_id }}.toml << 'EOF'
         ${{ inputs.config }}
         EOF
+        # Set permissions to be readable by container (644)
+        chmod 644 .cdviz-config-${{ github.run_id }}.toml
         
     - name: 'Build command arguments'
       shell: bash