Update ghcr.io/wyrihaximusnet/php Docker tag to v8.3

Author: renovate[bot]

.github/workflows/subsplit-client.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Generate and test client
     container:
-      image: ghcr.io/wyrihaximusnet/php:8.2-nts-alpine-dev-root
+      image: ghcr.io/wyrihaximusnet/php:8.3-nts-alpine-dev-root
     steps:
       - uses: actions/checkout@v3
         with:

.github/workflows/test-client.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Generate and test client (${{ inputs.name }})
     container:
-      image: ghcr.io/wyrihaximusnet/php:8.2-nts-alpine-dev-root
+      image: ghcr.io/wyrihaximusnet/php:8.3-nts-alpine-dev-root
     steps:
       - uses: actions/checkout@v3
         with: