Hoist phpunit to the monorepo toolchain (#3)

One phpunit (^12) pinned in the root composer.json; packages no longer
declare it. Package test scripts call `phpunit`, resolved from the
root vendor/bin which bin/monorepo puts on PATH; mirror workflows get
it via setup-php's tools input.

Migrates the phpunit 9 era leftovers: cli and platform phpunit.xml
schemas, cli's @dataProvider annotation to an attribute. cli's mirror
test matrix moves to 8.3-8.5 (phpunit 12 needs >=8.3). bin/monorepo
absorb now strips phpunit and rewrites test scripts for incoming
libraries.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: loks0n

.github/workflows/ci.yml

@@ -20,6 +20,7 @@ jobs:
         with:
           php-version: ${{ matrix.php }}
           extensions: swoole
+          tools: phpunit
           coverage: ${{ matrix.php == '8.3' && 'pcov' || 'none' }}
 
       - name: Get composer cache directory
@@ -37,11 +38,11 @@ jobs:
 
       - name: Run unit tests
         if: matrix.php != '8.3'
-        run: vendor/bin/phpunit --configuration phpunit.xml --testsuite unit
+        run: phpunit --configuration phpunit.xml --testsuite unit
 
       - name: Run unit tests with coverage
         if: matrix.php == '8.3'
-        run: vendor/bin/phpunit --configuration phpunit.xml --testsuite unit --coverage-text --coverage-clover coverage.xml
+        run: phpunit --configuration phpunit.xml --testsuite unit --coverage-text --coverage-clover coverage.xml
 
       - name: Upload coverage artifact
         if: matrix.php == '8.3' && always()
@@ -67,6 +68,7 @@ jobs:
         with:
           php-version: '8.4'
           extensions: swoole
+          tools: phpunit
           coverage: none
 
       - name: Install dependencies
@@ -76,7 +78,7 @@ jobs:
         run: docker compose up -d --build --wait ${{ matrix.adapter.id }}
 
       - name: Run E2E tests
-        run: vendor/bin/phpunit --configuration phpunit.xml --testsuite e2e-${{ matrix.adapter.id }}
+        run: phpunit --configuration phpunit.xml --testsuite e2e-${{ matrix.adapter.id }}
 
       - name: Dump container logs on failure
         if: failure()

composer.json

@@ -22,8 +22,8 @@
         }
     },
     "scripts": {
-        "test": "vendor/bin/phpunit --configuration phpunit.xml --testsuite unit",
-        "test:e2e": "vendor/bin/phpunit --configuration phpunit.xml --testsuite e2e-fpm,e2e-swoole"
+        "test": "phpunit --configuration phpunit.xml --testsuite unit",
+        "test:e2e": "phpunit --configuration phpunit.xml --testsuite e2e-fpm,e2e-swoole"
     },
     "require": {
         "php": ">=8.3",
@@ -48,8 +48,6 @@
         }
     },
     "require-dev": {
-        "doctrine/instantiator": "^1.5",
-        "phpunit/phpunit": "^12.0",
         "swoole/ide-helper": "4.8.3"
     }
 }