chore(deps): update golang docker tag to v1.22.4 (#146)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| golang | stage | patch | `1.22.2` -> `1.22.4` |

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/PingCAP-QE/ee-apps).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy40MjEuMCIsInVwZGF0ZWRJblZlciI6IjM3LjQyMS4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

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

cloudevents-server/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.2 AS builder
+FROM golang:1.22.4 AS builder
 COPY . /app
 RUN cd /app && go build -o server
 

dl/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.2 AS builder
+FROM golang:1.22.4 AS builder
 
 COPY . /app
 RUN --mount=type=cache,target=/go/pkg/mod cd /app && go build -o server ./cmd/server

tibuild/Dockerfile

@@ -5,7 +5,7 @@ COPY website/ .
 RUN --mount=type=cache,target=/webapp/node_modules npm install && yarn build
 
 # Copy whole project's contents(not entire folder) into .(/goapp/) and build Golang
-FROM golang:1.22.2 as serverbuilder
+FROM golang:1.22.4 as serverbuilder
 ENV GO111MODULE=on \
     CGO_ENABLED=0 \
     GOPROXY=https://goproxy.cn,direct