[MINOR] Fix out-of-default-directory build

### What changes were proposed in this pull request? Fixing a test assertion to deal with out of source tree builds. ### Why are the changes needed? Release and CI ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Existing tests Closes #146 from grundprinzip/rc-build-2. Authored-by: Martin Grund <martin.grund@databricks.com> Signed-off-by: Martin Grund <martin.grund@databricks.com>

Author: grundprinzip

spark/sparkerrors/errors_test.go

@@ -54,7 +54,7 @@ func TestStackTracePrint(t *testing.T) {
 err := WithType(assert.AnError, ConnectionError)
 errorString := fmt.Sprintf("%+v", err)
 t.Log(errorString)
-assert.Contains(t, errorString, "spark-connect-go/spark/sparkerrors/errors_test.go")
+assert.Contains(t, errorString, "spark/sparkerrors/errors_test.go")
 }
 
 func TestErrorDetailsExtractionFromGRPCStatus(t *testing.T) {