upgrade Go 1.19

[hawkingrei]

Enhancement

Why we need to upgrade Go 1.19

• important performance improvements (up to 20% for some generic programs)
• The garbage collector has added support for a soft memory limit, discussed in detail in the new garbage collection guide. The limit can be particularly helpful for optimizing Go programs to run as efficiently as possible in containers with dedicated amounts of memory. it is important for tidb.
• more metrics for Golang Runtime. runtime/metrics

For more information https://tip.golang.org/doc/go1.19

[Defined2014]

already use go1.19 in TiDB repo, close this issue.