Fix arm64 CI runner mismatches and stale action version comment (#7433)

Two arm64 integration test matrix entries (integration_overrides,
integration_querier_microservices_mode) were using the amd64 runner
ubuntu-24.04 instead of ubuntu-24.04-arm, causing them to run on
the wrong architecture.

Also fix stale version comment on actions/upload-artifact in
scorecards.yml (v3.pre.node20 -> v6.0.0 to match the pinned hash).

Signed-off-by: Friedrich Gonzalez <1517449+friedrichg@users.noreply.github.com>

Author: friedrichg

.github/workflows/scorecards.yml

@@ -55,7 +55,7 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v3.pre.node20
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: SARIF file
           path: results.sarif

.github/workflows/test-build-deploy.yml

@@ -203,7 +203,7 @@ jobs:
           - runner: ubuntu-24.04-arm
             arch: arm64
             tags: integration_memberlist
-          - runner: ubuntu-24.04
+          - runner: ubuntu-24.04-arm
             arch: arm64
             tags: integration_overrides
           - runner: ubuntu-24.04-arm
@@ -221,9 +221,9 @@ jobs:
           - runner: ubuntu-24.04-arm
             arch: arm64
             tags: integration_querier
-          - runner: ubuntu-24.04
+          - runner: ubuntu-24.04-arm
             arch: arm64
-            tags: integration_querier_microservices_mode            
+            tags: integration_querier_microservices_mode
     steps:
       - name: Upgrade golang
         uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # v6.1.0