Post v2.24.0 release updates to main (edgelesssys#3945)

* docs: release 2.24

* chore: update version.txt to v2.25.0-pre

* chore: update CI for v2.24.0

---------

Co-authored-by: edgelessci <[email protected]>

Author: edgelessci

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

@@ -229,7 +229,7 @@ jobs:
       fail-fast: false
       max-parallel: 1
       matrix:
-        fromVersion: ["v2.23.1"]
+        fromVersion: ["v2.24.0"]
         attestationVariant: ["gcp-sev-snp", "azure-sev-snp", "azure-tdx", "aws-sev-snp"]
     name: Run upgrade tests
     secrets: inherit

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

@@ -446,7 +446,7 @@ jobs:
       fail-fast: false
       max-parallel: 1
       matrix:
-        fromVersion: ["v2.23.1"]
+        fromVersion: ["v2.24.0"]
         attestationVariant: ["gcp-sev-snp", "azure-sev-snp", "azure-tdx", "aws-sev-snp"]
     name: Run upgrade tests
     secrets: inherit