Fix for #2677 (#2705)

* Update docs given https://github.com/yaml/go-yaml/pull/348

* Fix for https://github.com/mikefarah/yq/issues/2677

Depends on https://github.com/yaml/go-yaml/pull/348

* Test for https://github.com/mikefarah/yq/issues/2677

* Remove redundant check and add test case for explicit `!!merge` on `*+` traversal

* Bump go.yaml.in/yaml/v4 from 4.0.0-rc.4 to 4.0.0-rc.5

pkg/yqlib/lib_test.go

@@ -24,7 +24,7 @@ type parseSnippetScenario struct {
 var parseSnippetScenarios = []parseSnippetScenario{
 	{
 		snippet:       ":",
-		expectedError: "yaml: while parsing a block mapping at <unknown position>: did not find expected key",
+		expectedError: "go-yaml load error in parser (while parsing a block mapping) at L1.C1: did not find expected key",
 	},
 	{
 		snippet: "",