minor symfony#61126 do not install ext-zstd on PHP 8.5 (xabbuh)

This PR was merged into the 7.3 branch.

Discussion
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do not install ext-zstd on PHP 8.5

| Q             | A
| ------------- | ---
| Branch?       | 7.3
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        |
| License       | MIT

Commits
-------

e1709ad do not install ext-zstd on PHP 8.5

Author: nicolas-grekas

.github/workflows/unit-tests.yml

@@ -34,6 +34,8 @@ jobs:
           - php: '8.3'
           - php: '8.4'
           - php: '8.5'
+            # to be removed when ext-zstd is ready for PHP 8.5
+            extensions: amqp,apcu,brotli,igbinary,intl,mbstring,memcached,redis,relay
             #mode: experimental
       fail-fast: false
 
@@ -233,7 +235,7 @@ jobs:
       - name: Run AssetMapper without ext-brotli nor ext-zstd
         if: "! matrix.mode"
         run: |
-          sudo rm /etc/php/*/cli/conf.d/*-{brotli,zstd}.ini
+          sudo rm -f /etc/php/*/cli/conf.d/*-{brotli,zstd}.ini
           ./phpunit src/Symfony/Component/AssetMapper
 
       - name: Run tests with SIGCHLD enabled PHP