chore(deps): update docker.io/mlocati/php-extension-installer docker tag to v2.9.20

Author: renovate[bot]

containers/php/Dockerfile

@@ -5,7 +5,7 @@ FROM php:8.4.14-fpm-alpine AS base
 WORKDIR /var/www/html
 # install software needed for all environments
 COPY --from=docker.io/composer:2.9.2 /usr/bin/composer /usr/local/bin/composer
-COPY --from=docker.io/mlocati/php-extension-installer:2.9.19 /usr/bin/install-php-extensions /usr/local/sbin/install-php-extensions
+COPY --from=docker.io/mlocati/php-extension-installer:2.9.20 /usr/bin/install-php-extensions /usr/local/sbin/install-php-extensions
 ADD --chmod=777 \
     --checksum=sha256:206a8f9b2177703fc5aa924d85ad6c72e82413e2d09635b4c9c82a1b65b5b3d5 \
     https://github.com/eficode/wait-for/releases/download/v2.2.4/wait-for /usr/local/bin/wait-for