fix(manager): correctly escape the dot character in fileMatch (#17048)

lib/modules/manager/velaci/index.ts

@@ -3,7 +3,7 @@ import { DockerDatasource } from '../../datasource/docker';
 export { extractPackageFile } from './extract';
 
 export const defaultConfig = {
-  fileMatch: ['(^|/).vela.ya?ml$'],
+  fileMatch: ['(^|/)\\.vela\\.ya?ml$'],
 };
 
 export const supportedDatasources = [DockerDatasource.id];

lib/workers/repository/extract/file-match.spec.ts

@@ -53,7 +53,7 @@ describe('workers/repository/extract/file-match', () => {
       includePaths: [],
       ignorePaths: [],
       manager: 'npm',
-      fileMatch: ['(^|/)package.json$'],
+      fileMatch: ['(^|/)package\\.json$'],
     };
 
     it('returns npm files', () => {