no firebird on Alpine

Author: mvorisek

.github/actions/configure-x64/action.yml

@@ -79,7 +79,7 @@ runs:
           --with-oci8=shared,instantclient,/opt/oracle/instantclient \
           --with-config-file-path=/etc \
           --with-config-file-scan-dir=/etc/php.d \
-          --with-pdo-firebird \
+          $(if [ -f /etc/alpine-release ]; then echo ; else echo --with-pdo-firebird; fi) \
           --with-pdo-dblib \
           --enable-werror \
           ${{ inputs.configurationParameters }}