config:add vscode in gitignore (#12975)
config:add vscode in gitignore (#12975)


c4pt0r/tidb,kyle-wang/tidb,kyle-wang/tidb,XuHuaiyu/tidb,pingcap/tidb,c4pt0r/tidb,pingcap/tidb,c4pt0r/tidb,kyle-wang/tidb,c4pt0r/tidb,ngaut/tidb,Cofyc/tidb,pingcap/tidb,EvilMcJerkface/tidb,ngaut/tidb,ngaut/tidb,pingcap/tidb,ngaut/tidb,ngaut/tidb,ming-relax/tidb,pingcap/tidb,c4pt0r/tidb,kyle-wang/tidb,kyle-wang/tidb,kyle-wang/tidb,ngaut/tidb,XuHuaiyu/tidb,coocood/tidb,c4pt0r/tidb,coocood/tidb,Cofyc/tidb,ming-relax/tidb,EvilMcJerkface/tidb,pingcap/tidb