Drop verifier fuzzer test to 15 mins

Same as the bpf2c fuzzer. This removes 15 mins from the long pole
for CI/CD.

Signed-off-by: Dave Thaler <[email protected]>

Author: dthaler

.github/workflows/cicd.yml

@@ -187,7 +187,7 @@ jobs:
     uses: ./.github/workflows/reusable-test.yml
     with:
       name: verifier_fuzzer
-      test_command: .\verifier_fuzzer.exe verifier_corpus -use_value_profile=1 -max_total_time=1800 -artifact_prefix=Artifacts\
+      test_command: .\verifier_fuzzer.exe verifier_corpus -use_value_profile=1 -max_total_time=900 -artifact_prefix=Artifacts\
       build_artifact: Build-x64-fuzzer
       environment: windows-2019
       code_coverage: false