🔧 chore(renovate): restructure php version pinning rules

- add new package-specific rules to pin `ghcr.io/pooneyy/php` images by major.minor version (7.4, 8.1, 8.2, 8.3, 8.4, 8.5)
- remove old file-specific pinning rules for `apps/php-unofficial` directories (7.4.*, 8.1.*, 8.4.*)
- consolidate php version management to a package-based approach

renovate.json

@@ -101,6 +101,36 @@
       "matchPackageNames": ["gitlab/gitlab**"],
       "groupName": "GitLab"
     },
+    {
+      "matchPackageNames": ["ghcr.io/pooneyy/php", "php"],
+      "matchCurrentVersion": "/^(7.4[^\\s]*)/",
+      "allowedVersions": "/^(7.4[^\\s]*)/"
+    },
+    {
+      "matchPackageNames": ["ghcr.io/pooneyy/php"],
+      "matchCurrentVersion": "/^(8.1[^\\s]*)/",
+      "allowedVersions": "/^(8.1[^\\s]*)/"
+    },
+    {
+      "matchPackageNames": ["ghcr.io/pooneyy/php"],
+      "matchCurrentVersion": "/^(8.2[^\\s]*)/",
+      "allowedVersions": "/^(8.2[^\\s]*)/"
+    },
+    {
+      "matchPackageNames": ["ghcr.io/pooneyy/php"],
+      "matchCurrentVersion": "/^(8.3[^\\s]*)/",
+      "allowedVersions": "/^(8.3[^\\s]*)/"
+    },
+    {
+      "matchPackageNames": ["ghcr.io/pooneyy/php"],
+      "matchCurrentVersion": "/^(8.4[^\\s]*)/",
+      "allowedVersions": "/^(8.4[^\\s]*)/"
+    },
+    {
+      "matchPackageNames": ["ghcr.io/pooneyy/php"],
+      "matchCurrentVersion": "/^(8.5[^\\s]*)/",
+      "allowedVersions": "/^(8.5[^\\s]*)/"
+    },
     {
       "matchPackageNames": ["tdengine/tsdb**"],
       "groupName": "TDengine"
@@ -266,27 +296,6 @@
       ],
       "allowedVersions": "/^8.*.*/"
     },
-    {
-      "matchFileNames": [
-        "apps/php-unofficial/7.4.*/*.yml",
-        "apps/php-unofficial/7.4.*/Dockerfile"
-      ],
-      "allowedVersions": "/^7.4.*/"
-    },
-    {
-      "matchFileNames": [
-        "apps/php-unofficial/8.1.*/*.yml",
-        "apps/php-unofficial/8.1.*/Dockerfile"
-      ],
-      "allowedVersions": "/^8.1.*/"
-    },
-    {
-      "matchFileNames": [
-        "apps/php-unofficial/8.4.*/*.yml",
-        "apps/php-unofficial/8.4.*/Dockerfile"
-      ],
-      "allowedVersions": "/^8.4.*/"
-    },
     {
       "matchFileNames": [
         "apps/reader/2.7.*/*.yml"