Update Groovy extension language contribution
Update Groovy extension language contribution

Change `filenamePatterns` to `Jenkinsfile.*` to `Jenkinsfile*` to capture files starting with Jenkinsfile, not necessarily having a period as a delimiter.
microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode