devel/go-tools: Update to 0.2.0

Selected upstream changes:

• go/tools: add check for time formats with 2006-02-01
• go/callgraph/vta: do not assume that recovers cannot be deferred
• internal/imports: update stdlib index for 1.19
• godoc/redirect: delete golang.org-specific code
• x/tools: update go.mod following moving LSP code to x/tools/gopls
• go/ssa/ssautil: initialize info when there is syntax
• all: replace deprecated egrep with grep -E
• godoc: fix some comments
• cmd/ssadump: disable run mode with runtime package
• cmd/compilebench: use -a instead of -i to ensure dependencies are built
• go.mod: update golang.org/x dependencies

PR: 267314