[v10] Update Go to 1.19.4

[codingllama]

Update the v10 branches to the latest Go minor release.

FIPS image changes cloned from #16479.

[codingllama]

FIPS:

teleport-buildbox-fips:

$ make -C build.assets buildbox-fips
$ docker run \
    --rm -it -u $(id -u):$(id -g) \
    -e GOMODCACHE=/tmp/gomodcache \
    -e HOME=/go/src/github.com/gravitational/teleport/build.assets \
    -h buildbox \
    -v "$(pwd)":/go/src/github.com/gravitational/teleport \
    -v /tmp:/tmp \
    -w /go/src/github.com/gravitational/teleport \
    public.ecr.aws/gravitational/teleport-buildbox-fips:teleport10 \
    /bin/bash

$ go version  # inside buildbox
> go version go1.19.4 linux/amd64

$ go env | grep -i boring
> GOEXPERIMENT="boringcrypto"

$ go run ./hellofips.go  # import _ "crypto/tls/fipsonly"
> Hello FIPS

teleport-buildbox-centos7-fips:

(Same checks.)

[codingllama]

A basic teleport start > tctl users ls > tctl users ls > tsh login > tsh ssh test is looking alright too.