fix: constrain jetty version (#1225)

Co-authored-by: Sita Lakshmi Sangameswaran <sitalakshmi@google.com>

Author: averikitsch

background/pom.xml

@@ -39,7 +39,7 @@ Copyright 2019 Google LLC
     <maven.compiler.showWarnings>true</maven.compiler.showWarnings>
     <maven.compiler.failOnWarning>false</maven.compiler.failOnWarning>
     <maven.war.filteringDeploymentDescriptors>false</maven.war.filteringDeploymentDescriptors>
-    <jetty.version>11.0.9</jetty.version>
+    <jetty.version>9.4.51.v20230217</jetty.version>
   </properties>
 
   <dependencies>

bookshelf/1-cloud-run/pom.xml

@@ -41,7 +41,7 @@ Copyright 2019 Google LLC
     <maven.compiler.showDeprecation>true</maven.compiler.showDeprecation>
     <maven.compiler.showWarnings>true</maven.compiler.showWarnings>
     <maven.compiler.failOnWarning>false</maven.compiler.failOnWarning>
-    <jetty.version>10.0.9</jetty.version>
+    <jetty.version>9.4.51.v20230217</jetty.version>
   </properties>
 
   <dependencies>

helloworld-jsp/pom.xml

@@ -33,7 +33,7 @@
 
     <failOnMissingWebXml>false</failOnMissingWebXml> <!-- REQUIRED -->
     <appengine.maven.plugin>2.3.0</appengine.maven.plugin>
-    <jetty.maven.plugin>11.0.12</jetty.maven.plugin>
+    <jetty.maven.plugin>9.4.51.v20230217</jetty.maven.plugin>
   </properties>
 
   <!-- Parent POM defines common plugins and properties. -->

renovate.json

@@ -36,5 +36,8 @@
    "dependencyDashboard": true,
    "dependencyDashboardLabels": [
     "type: process"
-  ]
+  ],
+  "constraints": {
+    "java": "1.8"
+  }
 }