[macOS] Update PHP to 8.5 for Intel-based images (actions#13342)

Author: erik-bershel

images/macos/toolsets/toolset-14.json

@@ -323,7 +323,7 @@
         "version": "15"
     },
     "php": {
-        "version": "8.4"
+        "version": "8.5"
     },
     "pwsh": {
         "version": "7.4"

images/macos/toolsets/toolset-15.json

@@ -343,7 +343,7 @@
         "version": "18"
     },
     "php": {
-        "version": "8.4"
+        "version": "8.5"
     },
     "pwsh": {
         "version": "7.4"