gin with golang 1.21, 1.22 DATA RACE

[georgehao]

Description

gin 1.9.1 with 1.21, 1.22 something occurs data race. btw under 1.20 is ok

WARNING: DATA RACE
Write at 0x00c000323820 by goroutine 573:
  github.com/gin-gonic/gin.(*Engine).ServeHTTP()
      /Users/xx/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/gin.go:573 +0xd0
  net/http.serverHandler.ServeHTTP()
      /Users/xx/sdk/go1.22.2/src/net/http/server.go:3137 +0x2a8
  net/http.(*conn).serve()
      /Users/xx/sdk/go1.22.2/src/net/http/server.go:2039 +0xf28
  net/http.(*Server).Serve.gowrap3()
      /Users/xx/sdk/go1.22.2/src/net/http/server.go:3285 +0x4c

Previous read at 0x00c000323820 by goroutine 554:
  github.com/gin-gonic/gin.(*Context).hasRequestContext()
      /Users/xx/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/context.go:1186 +0x8c
  github.com/gin-gonic/gin.(*Context).Err()
      /Users/xx/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/context.go:1208 +0x108
  database/sql.(*Rows).awaitDone()
      /Users/xx/sdk/go1.22.2/src/database/sql/sql.go:3001 +0x200
  database/sql.(*Rows).initContextClose.gowrap1()
      /Users/xx/sdk/go1.22.2/src/database/sql/sql.go:2977 +0x7c

How to reproduce

https://github.com/scroll-tech/scroll/actions/runs/8769487237/job/24065024246?pr=1284

Environment

• go version: 1.21.x 1.22.x
• gin version (or commit ref): 1.9.1
• operating system: mac, linux