Fix Renovate config warnings
Fix Renovate config warnings

Validation can be run from the command-line.
Before this change:
```
$ npx --package renovate '-c renovate-config-validator'
 INFO: Validating .github/renovate.json
 WARN: .github/renovate.json contains warnings
       "warnings": [
         {
           "topic": "Configuration Error",
           "message": "packageRules[0]: Each packageRule must contain at least one non-match* or non-exclude* field. Rule: {\"matchPackagePatterns\":[\"*\"]}"
         }
       ]
```

After this change:
```
$ npx --package renovate '-c renovate-config-validator'
 INFO: Validating .github/renovate.json
 INFO: Config validated successfully
```

NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet