chore(KFLUXVNGD-140): renovate to ignore tekton-tools tasks

The tasks that are maintained in tekton-tools are tracked by mintmaker
there and have additional specific test cases there.

We should let mintmaker update them rather than have renovate update
them here. The updated tasks are then automatically mirrored to this
repo.

Signed-off-by: Yftach Herzog <[email protected]>

renovate.json

@@ -136,8 +136,7 @@
         "stepactions/eaas-get-ephemeral-cluster-credentials/**",
         "stepactions/eaas-get-latest-openshift-version-by-prefix/**",
         "stepactions/eaas-get-supported-ephemeral-cluster-versions/**",
-        "task/eaas-provision-space/**",
-        "task/provision-env-with-ephemeral-namespace/**"
+        "task/eaas-provision-space/**"
       ]
     },
     {
@@ -170,12 +169,15 @@
       ]
     },
     {
-      "groupName": "rpm-tasks",
+      "groupName": "tekton-tools-tasks",
+      "description": "Updated and verified in tekton-tools so should be ignored here",
       "matchFileNames": [
         "task/generate-odcs-compose/**",
         "task/rpms-signature-scan/**",
-        "task/verify-signed-rpms/**"
-      ]
+        "task/verify-signed-rpms/**",
+        "task/provision-env-with-ephemeral-namespace/**"
+      ],
+      "enabled": false
     }
   ],
   "postUpdateOptions": [