Fix: Silence false positive "No such target" errors for files in the …

…project root

In these cases, bazel reports an error with empty (`''`) package

Follow up of bazelbuild#6262

base/src/com/google/idea/blaze/base/issueparser/BlazeIssueParser.java

@@ -471,7 +471,7 @@ static class GenericErrorParser extends SingleLineParser {
             "(" + BAZEL_BUILD_FILES_PATTERN + ":[0-9]+:[0-9]+: Couldn't build file .*)");
 
     private static final ImmutableList<String> QUERY_PATTERNS = ImmutableList.of(
-            "(Skipping '//.+': no such target '//.+': target '.*' not declared in package '.+' defined by .+)",
+            "(Skipping '//.+': no such target '//.+': target '.*' not declared in package '.*' defined by .+)",
             "(Skipping '//.+': no targets found beneath '.+')"
     );