feat: remove Composer caching steps from validation workflow for streamlined execution

Author: Simon Bigelmayr

.github/workflows/validate.yml

@@ -42,15 +42,6 @@ jobs:
       - uses: ramsey/composer-install@v3
         with:
           dependency-versions: "${{ matrix.dependencies }}"
-      - name: "Cache Composer"
-        uses: actions/cache@v4
-        with:
-          path: ~/.composer/cache/files
-          key: composer-${{ runner.os }}-${{ matrix.php-version }}-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            composer-${{ runner.os }}-${{ matrix.php-version }}-${{ matrix.dependencies }}-
-            composer-${{ runner.os }}-
-
       - run: vendor/bin/phpstan analyse --configuration=phpstan.neon
 
   tests:
@@ -76,15 +67,6 @@ jobs:
       - uses: ramsey/composer-install@v3
         with:
           dependency-versions: "${{ matrix.dependencies }}"
-      - name: "Cache Composer"
-        uses: actions/cache@v4
-        with:
-          path: ~/.composer/cache/files
-          key: composer-${{ runner.os }}-${{ matrix.php-version }}-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            composer-${{ runner.os }}-${{ matrix.php-version }}-${{ matrix.dependencies }}-
-            composer-${{ runner.os }}-
-
       - run: vendor/bin/phpunit
 
   code-coverage:
@@ -100,14 +82,6 @@ jobs:
           php-version: 8.3
 
       - uses: ramsey/composer-install@v3
-      - name: "Cache Composer"
-        uses: actions/cache@v4
-        with:
-          path: ~/.composer/cache/files
-          key: composer-${{ runner.os }}-coverage-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            composer-${{ runner.os }}-coverage-
-
       - run: vendor/bin/phpunit --coverage-clover=.build/logs/clover.xml
 
       # Not using v4 due to the breaking changes described in https://github.com/codecov/codecov-action/releases/tag/v4.0.0