all: apply modernisers

Signed-off-by: Ophestra <cat@gensokyo.uk>

hst/fs_test.go

@@ -103,7 +103,7 @@ func TestFilesystemConfigJSON(t *testing.T) {
 			t.Run("marshal", func(t *testing.T) {
 				t.Parallel()
 				wantErr := tc.wantErr
-				if errors.As(wantErr, new(hst.FSTypeError)) {
+				if _, ok := errors.AsType[hst.FSTypeError](wantErr); ok {
 					// for unsupported implementation tc
 					wantErr = hst.FSImplError{Value: stubFS{"cat"}}
 				}
@@ -139,7 +139,7 @@ func TestFilesystemConfigJSON(t *testing.T) {
 			t.Run("unmarshal", func(t *testing.T) {
 				t.Parallel()
 				if tc.data == "\x00" && tc.sData == "\x00" {
-					if errors.As(tc.wantErr, new(hst.FSImplError)) {
+					if _, ok := errors.AsType[hst.FSImplError](tc.wantErr); ok {
 						// this error is only returned on marshal
 						return
 					}