Update module mvdan.cc/gofumpt to v0.11.0 (release-2026-lts) (#10542)

Update module mvdan.cc/gofumpt to v0.11.0

| datasource | package          | from    | to      |
| ---------- | ---------------- | ------- | ------- |
| go         | mvdan.cc/gofumpt | v0.10.0 | v0.11.0 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Makefile

@@ -40,7 +40,7 @@ GOLANGCI_LINT_VERSION         ?= v2.12.2 ## The version of golangci-lint to use
 # renovate: datasource=go depName=golang.org/x/tools
 GOIMPORTS_VERSION             ?= v0.48.0 ## The version of goimports to use
 # renovate: datasource=go depName=mvdan.cc/gofumpt
-GOFUMPT_VERSION               ?= v0.10.0 ## The version of gofumpt to use
+GOFUMPT_VERSION               ?= v0.11.0 ## The version of gofumpt to use
 
 # Additional flags added here can be accessed in main.go.
 # e.g. `main.version` maps to `var version` in main.go