[CI] Disable SPM cache until StreamCore is released

Author: testableapple

.github/actions/xcode-cache/action.yml

@@ -7,10 +7,11 @@ runs:
       shell: bash
     - run: echo "$HOME/.mint/bin" >> $GITHUB_PATH
       shell: bash
-    - name: Cache SPM
-      uses: actions/cache@v4
-      id: spm-cache
-      with:
-        path: spm_cache
-        key: ${{ env.IMAGE }}-spm-${{ hashFiles('**/Package.resolved') }}
-        restore-keys: ${{ env.IMAGE }}-spm-
+    # TODO: https://linear.app/stream/issue/IOS-1010
+    # - name: Cache SPM
+    #   uses: actions/cache@v4
+    #   id: spm-cache
+    #   with:
+    #     path: spm_cache
+    #     key: ${{ env.IMAGE }}-spm-${{ hashFiles('**/Package.resolved') }}
+    #     restore-keys: ${{ env.IMAGE }}-spm-