Revert back to custom code for installing swift

.github/workflows/pytest.yml

@@ -70,13 +70,40 @@ jobs:
         with:
           terraform_version: "1.5.0"
           terraform_wrapper: false
-      - name: Install swift
-        if: runner.os != 'Windows'
-        uses: swift-actions/setup-swift@v2
-      # Installation of swift screws with installation of ruby on macOS for some reason
-      - name: Install Xcode Command Line Tools
-        run: xcode-select --install || true
+      # - name: Install swift
+      #   if: runner.os != 'Windows'
+      #   uses: swift-actions/setup-swift@v2
+      # Installation of swift with the action screws with installation of ruby on macOS for some reason
+      # We can try again when version 3 of the action is released, where they will also use swiftly
+      # Until then, we use custom code to install swift. Sourcekit-lsp is installed automatically with swift
+      - name: Install Swift with swiftly (macOS)
         if: runner.os == 'macOS'
+        run: |
+          echo "=== Installing swiftly on macOS ==="
+          curl -O https://download.swift.org/swiftly/darwin/swiftly.pkg && \
+          installer -pkg swiftly.pkg -target CurrentUserHomeDirectory && \
+          ~/.swiftly/bin/swiftly init --quiet-shell-followup && \
+          . "${SWIFTLY_HOME_DIR:-$HOME/.swiftly}/env.sh" && \
+          hash -r
+          swiftly install --use 6.1.2
+          swiftly use 6.1.2
+          echo "~/.swiftly/bin" >> $GITHUB_PATH
+          echo "Swiftly installed successfully"
+      - name: Install Swift with swiftly (Ubuntu)
+        if: runner.os == 'Linux'
+        run: |
+          echo "=== Installing swiftly on Ubuntu ==="
+          curl -O https://download.swift.org/swiftly/linux/swiftly-$(uname -m).tar.gz && \
+          tar zxf swiftly-$(uname -m).tar.gz && \
+          ./swiftly init --quiet-shell-followup && \
+          . "${SWIFTLY_HOME_DIR:-$HOME/.local/share/swiftly}/env.sh" && \
+          hash -r
+          swiftly install --use 6.1.2
+          swiftly use 6.1.2
+          sudo apt-get -y install libcurl4-openssl-dev
+          echo "=== Adding Swift toolchain to PATH ==="
+          echo "$HOME/.local/share/swiftly/bin" >> $GITHUB_PATH
+          echo "Swiftly installed successfully!"
       - name: Install Ruby
         uses: ruby/setup-ruby@v1
         with: