Update CI workflows to 0c49aaa (#7)

This PR updates the CI workflow files from the main Zed repository
based on the commit
zed-industries/zed@0c49aaa

This changes the workflows to instead use a pinned version of the
workflows from the main repository.

Co-authored-by: zed-zippy[bot] <234243425+zed-zippy[bot]@users.noreply.github.com>

Author: zed-zippy[bot]

.github/workflows/run_tests.yml

@@ -12,7 +12,7 @@ jobs:
   call_extension_tests:
     permissions:
       contents: read
-    uses: zed-industries/zed/.github/workflows/extension_tests.yml@main
+    uses: zed-industries/zed/.github/workflows/extension_tests.yml@0c49aaae3743e349dc18452c90877dbdee59bee1
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.ref_name == 'main' && github.sha || 'anysha' }}pr
   cancel-in-progress: true