Bump php from 8.3.0-fpm to 8.3.1-fpm in /api (#2482)

Bumps php from 8.3.0-fpm to 8.3.1-fpm.

---
updated-dependencies:
- dependency-name: php
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

api/Dockerfile

@@ -51,7 +51,7 @@ RUN git clone --depth=1 -b $CURL_VERSION https://github.com/curl/curl && \
     make -j $(nproc) && \
     make install
 
-FROM php:8.3.0-fpm AS runtime
+FROM php:8.3.1-fpm AS runtime
 WORKDIR /var/www/html/api
 COPY --from=openssl /usr/local/bin/ /usr/local/bin/
 COPY --from=openssl /usr/local/include/ /usr/local/include/