chore: update deps, adapt lint, use json v2 (#1185)

- Raised go to 1.27
- Adopted json v2
- Sync lint config from gitea
- Fixed all issues

Co-authored-by: silverwind <me@silverwind.io>
Reviewed-on: https://gitea.com/gitea/runner/pulls/1185
Reviewed-by: bircni <bircni@icloud.com>
Co-authored-by: Renovate Bot <renovate-bot@gitea.com>

act/runner/step_factory_test.go

@@ -65,7 +65,7 @@ func TestStepFactoryNewStep(t *testing.T) {
 
 			step, err := sf.newStep(tt.model, &RunContext{})
 
-			assert.True(t, tt.check((step)))
+			assert.True(t, tt.check(step))
 			assert.NoError(t, err)
 		})
 	}