x/tools/gopls: gopls version output is incorrect

[hyangah]

$ ~/go/bin/gopls version
golang.org/x/tools/gopls v0.6.0
    golang.org/x/tools/gopls@v0.6.1 h1:vD171EDBkyUVyp9B45IYXklV/VEfbHgX0FKw0Q0dO30=

But I am sure I got the latest gopls v0.6.1

$ go version -m ~/go/bin/gopls
/Users/hakim/go/bin/gopls: go1.16beta1
        path    golang.org/x/tools/gopls
        mod     golang.org/x/tools/gopls        v0.6.1  h1:vD171EDBkyUVyp9B45IYXklV/VEfbHgX0FKw0Q0dO30=
        dep     github.com/BurntSushi/toml      v0.3.1
        dep     github.com/google/go-cmp        v0.5.1
        dep     github.com/sergi/go-diff        v1.1.0
        dep     golang.org/x/mod        v0.3.0  h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
        dep     golang.org/x/sync       v0.0.0-20201020160332-67f06af15bc9      h1:SQFwaSi55rU7vdNs9Yr0Z324VNlrF+0wMqRXT4St8ck=
        dep     golang.org/x/tools      v0.0.0-20201217163546-c88dec5c6b05      h1:4hzTNH658xirWc4MvAx9HK2/2hY6z42i1+lRK8OzeJE=
        dep     golang.org/x/xerrors    v0.0.0-20200804184101-5ec99f83aff1      h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
        dep     honnef.co/go/tools      v0.0.1-2020.1.6 h1:W18jzjh8mfPez+AwGLxmOImucz/IFjpNlrKVnaj2YVc=
        dep     mvdan.cc/gofumpt        v0.0.0-20200927160801-5bfeb2e70dd6      h1:z+/YqapuV7VZPvBb3GYmuEJbA88M3PFUxaHilHYVCpQ=
        dep     mvdan.cc/xurls/v2       v2.2.0  h1:NSZPykBXJFCetGZykLAxaL6SIpvbVy/UFEniIfHAa8A=

[gopherbot]

Change https://golang.org/cl/279715 mentions this issue: gopls/release: add a command to validate the gopls release process