Optimize composer caching

Previously our composer package cache would not be updated because we
had no `composer.lock` (which hash is used as part of the cache key).

Generating `composer.lock` (but not installing packages) before we check
the cache fixes this.

.github/workflows/bcc.yml

@@ -23,6 +23,10 @@ jobs:
           echo "files_cache=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
           echo "vcs_cache=$(composer config cache-vcs-dir)" >> $GITHUB_OUTPUT
 
+      - name: Generate composer.lock
+        run: |
+          composer update --no-install
+
       - name: Cache composer cache
         uses: actions/cache@v3
         with:

.github/workflows/build-phar.yml

@@ -52,6 +52,10 @@ jobs:
           echo "files_cache=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
           echo "vcs_cache=$(composer config cache-vcs-dir)" >> $GITHUB_OUTPUT
 
+      - name: Generate composer.lock
+        run: |
+          composer update --no-install
+
       - name: Cache composer cache
         uses: actions/cache@v3
         with:

.github/workflows/ci.yml

@@ -24,6 +24,10 @@ jobs:
           echo "files_cache=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
           echo "vcs_cache=$(composer config cache-vcs-dir)" >> $GITHUB_OUTPUT
 
+      - name: Generate composer.lock
+        run: |
+          composer update --no-install
+
       - name: Cache composer cache
         uses: actions/cache@v3
         with:
@@ -97,6 +101,10 @@ jobs:
           echo "files_cache=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
           echo "vcs_cache=$(composer config cache-vcs-dir)" >> $GITHUB_OUTPUT
 
+      - name: Generate composer.lock
+        run: |
+          composer update --no-install
+
       - name: Cache composer cache
         uses: actions/cache@v3
         with:

.github/workflows/windows-ci.yml

@@ -69,6 +69,10 @@ jobs:
           echo "vcs_cache=$(composer config cache-vcs-dir)" >> $GITHUB_OUTPUT
         shell: bash
 
+      - name: Generate composer.lock
+        run: |
+          composer update --no-install
+
       - name: Cache composer cache
         uses: actions/cache@v3
         with: