chore: fixup release instructions for pushing tags

[gregmagolan]

Description

Current instructions are incorrect.

Type of change

• Documentation (updates to documentation or READMEs)

[alexeagle]

What's wrong with that bash shorthand notation? It means "last argument of prior command"

[gregmagolan]

What's wrong with that bash shorthand notation? It means "last argument of prior command"

I don't know. It doesn't work for me.

gregs-mbp:aspect-cli greg$ git tag 6.6.6
gregs-mbp:aspect-cli greg$ echo $!
76802

Maybe it is linux specific?

[gregmagolan]

On noes... the stupid failing git describe --tags is back again,

//release/brew/tests:version_file_with_stamp_test                        FAILED in 0.3s
  /home/runner/.cache/bazel/_bazel_runner/8e9f7bf5c7ea7145245717c620f4b2bc/execroot/build_aspect_cli/bazel-out/k8-fastbuild/testlogs/release/brew/tests/version_file_with_stamp_test/test.log

if you look closely at the logs you'll see

fatal: No tags can describe 'a600aa03c1b7dbb3e01e4d2b9698d187cf79752f'.

which comes from

echo "STABLE_BUILD_SCM_TAG $(git describe --tags)"

in the workspace_status.sh script

[gregmagolan]

Oh I see... the current token $! in the instructions is last PID.

Last arg is either !$ or $_... Updating to $_ since !$ is too easy to mixup with $! at a glance.