chore: update CI for v2.21.1 (#3686)

Co-authored-by: edgelessci <edgelessci@users.noreply.github.com>

Author: edgelessci

.github/workflows/e2e-test-release.yml

@@ -409,7 +409,7 @@ jobs:
       fail-fast: false
       max-parallel: 1
       matrix:
-        fromVersion: ["v2.21.0"]
+        fromVersion: ["v2.21.1"]
         attestationVariant: ["gcp-sev-snp", "azure-sev-snp", "azure-tdx", "aws-sev-snp"]
     name: Run upgrade tests
     secrets: inherit

.github/workflows/e2e-test-weekly.yml

@@ -420,7 +420,7 @@ jobs:
       fail-fast: false
       max-parallel: 1
       matrix:
-        fromVersion: ["v2.21.0"]
+        fromVersion: ["v2.21.1"]
         attestationVariant: ["gcp-sev-snp", "azure-sev-snp", "azure-tdx", "aws-sev-snp"]
     name: Run upgrade tests
     secrets: inherit