Project file removal (#569)

* Deleted project file

* Add back SPM Package.resolved + .gitignore

* Generate project file on release builds

* Converge on single CI setup scripts within `ci_scripts/ci_common.sh`

* Fix unit tests

* Use new `ci_common/setup_github_actions_environment` setup script on all workflows

* Move lfs validation check to the pre-commit hooks. Remove validate-lfs github actions workflow

* Fix integration tests workflow

* Tweaks following code review

.github/workflows/integration-tests.yml

@@ -19,10 +19,6 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Brew bundle
-        run:
-          brew update && brew bundle && brew upgrade swiftformat
-
       - uses: actions/cache@v3
         with:
           path: vendor/bundle
@@ -30,10 +26,9 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-gems-
 
-      - name: Bundle install
-        run: |
-          bundle config path vendor/bundle
-          bundle install --jobs 4 --retry 3
+      - name: Setup environment
+        run:
+          source ci_scripts/ci_common.sh && setup_github_actions_environment
       
       - name: Run tests
         run: bundle exec fastlane integration_tests