sig-security: add new pull job for cve-feed unit tests (#35426)

This new job is for running the CVE feed scripts unit tests every time
something touches them. The tests were added by kubernetes/sig-security#155.

Author: mtardy

config/jobs/kubernetes/sig-security/cve-feed-tests.yaml

@@ -0,0 +1,28 @@
+presubmits:
+  kubernetes/sig-security:
+  - name: pull-sig-security-cve-feed
+    cluster: eks-prow-build-cluster
+    annotations:
+      testgrid-dashboards: sig-security-cve-feed
+      testgrid-create-test-group: "true"
+      description: Running the CVE feed tests on PRs
+    run_if_changed: "^sig-security-tooling/cve-feed/hack/"
+    branches:
+    - main
+    decorate: true
+    spec:
+      containers:
+      - image: gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20250116-2a05ea7e3d
+        workingDir: sig-security-tooling/cve-feed/hack
+        command:
+        - python
+        args:
+        - test_cve_title_parser.py
+        - -v
+        resources:
+          limits:
+            cpu: 1
+            memory: "256m"
+          requests:
+            cpu: 1
+            memory: "256m"