minor #1190 [CI] Remove needs dependency from demo job (OskarStark)

This PR was merged into the main branch.

Discussion
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[CI] Remove needs dependency from demo job

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Docs?         | no
| Issues        | --
| License       | MIT

Commits
-------

595507a [CI] Remove needs dependency from demo job

Author: OskarStark

.github/workflows/tests.yaml

@@ -207,12 +207,8 @@ jobs:
             - name: Run PHPUnit
               run: cd src/platform/src/Bridge/${{ matrix.bridge.bridge }} && vendor/bin/phpunit
 
-    # ===========================================
-    # Integration Tests (run after unit tests)
-    # ===========================================
     demo:
         name: Integration / Demo
-        needs: [packages, store-bridges, tool-bridges, platform-bridges]
         runs-on: ubuntu-latest
 
         steps: