build: introduce testing infra for GraalVM "C" (#11526)

* build: introduce testing infra for GraalVM "C"

* chore: update jobs to the latest

* chore: update sdk platform image version

* chore: update presubmit jobs

Author: diegomarquezp

.github/sync-repo-settings.yaml

@@ -16,6 +16,7 @@ branchProtectionRules:
       - 'Kokoro - Test: Integration'
       - 'Kokoro - Test: GraalVM Native Image A'
       - 'Kokoro - Test: GraalVM Native Image B'
+      - 'Kokoro - Test: GraalVM Native Image C'
       - header-check
       - library_generation
       - unmanaged_dependency_check

.kokoro/nightly/graalvm-native-a.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:3.45.1"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_a:3.46.2"
 }
 
 env_vars: {

.kokoro/nightly/graalvm-native-b.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:3.45.1"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_b:3.46.2"
 }
 
 env_vars: {

.kokoro/nightly/graalvm-native-17.cfg renamed to .kokoro/nightly/graalvm-native-c.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:3.45.1"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_c:3.46.2"
 }
 
 env_vars: {