deps: update dependency com.google.cloud:sdk-platform-java-config to v3.28.1

Author: renovate-bot

.kokoro/presubmit/graalvm-native-17.cfg

@@ -3,7 +3,7 @@
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
   key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_b:3.27.0"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_b:3.28.1"
 }
 
 env_vars: {

.kokoro/presubmit/graalvm-native.cfg

@@ -3,7 +3,7 @@
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
   key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_a:3.27.0"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_a:3.28.1"
 }
 
 env_vars: {

pom.xml

@@ -25,7 +25,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>sdk-platform-java-config</artifactId>
-    <version>3.27.0</version>
+    <version>3.28.1</version>
   </parent>
 
   <developers>