Revert "Bump JDK version in signature verification workflow"

This reverts commit 85de45b.

Author: emlun

.github/workflows/release-verify-signatures.yml

@@ -39,7 +39,7 @@ jobs:
 
     strategy:
       matrix:
-        java: ["17.0.9"]
+        java: ["17.0.7"]
         distribution: [temurin, zulu, microsoft]
 
     steps: