test(convention): unit test for misc type

pkg/convention/commit_test.go

@@ -44,6 +44,12 @@ func TestNewCommit(t *testing.T) {
 				Message: "Docs: correct spelling of CHANGELOG",
 			},
 		},
+		{
+			name: "Misc",
+			c: git.Commit{
+				Message: "random git message",
+			},
+		},
 	}
 
 	for _, tc := range tests {

pkg/convention/testdata/TestNewCommit/Misc.golden

@@ -0,0 +1,4 @@
+{
+  "RawHeader": "random git message",
+  "Type": "misc"
+}