bump the jdk to 21 for cloudwatch-exporter (#31263)

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I'm going to create an advisory entry for the CVE because when I tried
to bump the dependency to the fixed version but the compilation failed.

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Signed-off-by: Batuhan Apaydin <[email protected]>

cloudwatch-exporter.yaml

@@ -1,7 +1,7 @@
 package:
   name: cloudwatch-exporter
   version: 0.16.0 # Check if the version bump in the mvn command is still needed next time this package is updated
-  epoch: 0
+  epoch: 1
   description: Metrics exporter for Amazon AWS CloudWatch
   copyright:
     - license: Apache-2.0
@@ -15,8 +15,8 @@ environment:
       - ca-certificates-bundle
       - curl
       - maven
-      - openjdk-17
-      - openjdk-17-default-jvm
+      - openjdk-21
+      - openjdk-21-default-jvm
 
 pipeline:
   - uses: git-checkout

cloudwatch-exporter/pombump-deps.yaml

@@ -3,3 +3,14 @@ patches:
     artifactId: netty-codec-http
     version: 4.1.108.Final
     scope: import
+  - groupId: org.eclipse.jetty
+    artifactId: jetty-servlet
+    version: 11.0.24
+    scope: import
+  # - groupId: org.eclipse.jetty
+  #   artifactId: jetty-http
+  #   version: 12.0.12
+  #   scope: import
+
+# GHSA-qh8g-58pp-2wxh
+# GHSA-g8m5-722r-8whq