Merge 98a6a283a5e9a85ededad9485d394555e4c09537 into 26c3a628655cad2388380cb8102d6ce7d4875f3b

Bumps the actions group with 1 update: [actions/cache](https://github.com/actions/cache).


Updates `actions/cache` from 4 to 5
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/gin.yml

@@ -65,7 +65,7 @@ jobs:
         with:
           ref: ${{ github.ref }}
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: |
             ${{ matrix.go-build }}

context.go

@@ -239,6 +239,16 @@ func (c *Context) AbortWithError(code int, err error) *Error {
 	return c.Error(err)
 }
 
+// GraceError calls `Error` internally.
+// This method does not panic when err is nil, and no return value.
+// See Context.Error() for more details.
+func (c *Context) GraceError(err error) {
+	if err == nil {
+		return
+	}
+	c.Error(err) // nolint: errcheck
+}
+
 /************************************/
 /********* ERROR MANAGEMENT *********/
 /************************************/

response_writer.go

@@ -128,7 +128,9 @@ func (w *responseWriter) CloseNotify() <-chan bool {
 // Flush implements the http.Flusher interface.
 func (w *responseWriter) Flush() {
 	w.WriteHeaderNow()
-	w.ResponseWriter.(http.Flusher).Flush()
+	if f, ok := w.ResponseWriter.(http.Flusher); ok {
+		f.Flush()
+	}
 }
 
 func (w *responseWriter) Pusher() (pusher http.Pusher) {