chore(ci): update witness-run-action, change witness install dir

This updates the witness-run-action, and installs witness to a directory
outside of the current source directory. This keeps our source git tree
clean.

Signed-off-by: Mikhail Swift <mikhail@testifysec.com>

.github/workflows/pipeline.yml

@@ -96,11 +96,12 @@ jobs:
               run: go install github.com/goreleaser/goreleaser@v1.23.0
 
             - name: Run GoReleaser
-              uses: testifysec/witness-run-action@85ddab8b46a86b2905a3b547a1806ab264fbb810
+              uses: testifysec/witness-run-action@cceed291062b350dc658d7d189933ac47d4f4dec
               env:
                 GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
                 GITHUB_REPOSITORY_OWNER: ${{ github.repository_owner }}
               with:
+                witness-install-dir: /opt/witness
                 step: "build"
                 attestations: "github"
                 command: goreleaser release --clean

.github/workflows/witness.yml

@@ -49,8 +49,9 @@ jobs:
               go-version: 1.21.x
 
           - if: ${{ inputs.pull_request == false }}
-            uses: testifysec/witness-run-action@85ddab8b46a86b2905a3b547a1806ab264fbb810
+            uses: testifysec/witness-run-action@cceed291062b350dc658d7d189933ac47d4f4dec
             with:
+              witness-install-dir: /opt/witness
               step: ${{ inputs.step }}
               attestations: ${{ inputs.attestations }}
               command: /bin/sh -c "${{ inputs.command }}"