chore(deps): bump actions/upload-artifact from 5 to 6

Bumps actions/upload-artifact from 5 to 6. This update includes:
- Node.js 24 runtime support
- Requires Actions Runner version 2.327.1 or later
- Fixes punycode deprecation warnings

Author: josecelano

.github/workflows/generate_coverage_pr.yaml

@@ -59,13 +59,13 @@ jobs:
       # Triggered sub-workflow is not able to detect the original commit/PR which is available
       # in this workflow.
       - name: Store PR number
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: pr_number
           path: pr_number.txt
 
       - name: Store commit SHA
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: commit_sha
           path: commit_sha.txt
@@ -74,7 +74,7 @@ jobs:
       # is executed by a different workflow `upload_coverage.yml`. The reason for this
       # split is because `on.pull_request` workflows don't have access to secrets.
       - name: Store coverage report in artifacts
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: codecov_report
           path: ./codecov.json

cSpell.json

@@ -32,6 +32,7 @@
         "canonicalized",
         "certbot",
         "chrono",
+        "Cinstrument",
         "ciphertext",
         "clippy",
         "cloneable",