chore: drop support for PHP 8.0 (#8449)

Author: bshaffer

.github/workflows/unit-tests.yaml

@@ -12,12 +12,12 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, windows-latest]
-        php: [ "8.0", "8.1", "8.2", "8.3", "8.4" ]
+        php: [ "8.1", "8.2", "8.3", "8.4" ]
         extensions: ["grpc-1.54.0"]
         type: ["Unit Test"]
         include:
           - platform: "ubuntu-latest"
-            php: "8.0"
+            php: "8.1"
             extensions: "protobuf,grpc-1.54.0"
             type: "Unit Test + protobuf extension"
     name: PHP ${{ matrix.php }} ${{ matrix.type }} (${{ matrix.platform }})

AccessApproval/composer.json

@@ -23,7 +23,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {

AccessContextManager/composer.json

@@ -23,7 +23,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {

AdsAdManager/composer.json

@@ -17,7 +17,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {

AdsMarketingPlatformAdmin/composer.json

@@ -17,7 +17,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {

AdvisoryNotifications/composer.json

@@ -17,7 +17,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {

AiPlatform/composer.json

@@ -23,7 +23,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {

AlloyDb/composer.json

@@ -17,7 +17,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0",
         "google/common-protos": "^4.4"
     },

AnalyticsAdmin/composer.json

@@ -23,7 +23,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {

AnalyticsData/composer.json

@@ -23,7 +23,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "google/gax": "^1.36.0"
     },
     "require-dev": {