fix(docs): use sh instead of bash with busybox

[chengjoey]

create examples/work-avoidance.yaml
echo pod occur error:

Error: failed to find name in PATH: exec: "bash": executable file not found in $PATH

Motivation

use sh instead of bash

Modifications

Verification

[agilgur5]

Ah, follow-up to #13429, nice catch!
Were there any other uses of bash you could find?

Most of the commands were echo or cowsay/whalesay but I guess there were some nuanced scripts like this one too

[agilgur5]

Answering my own question, did a search and the rest use other images. Some of them do use argosay though, which is slated for removal as well, so those will need to be careful around in future PRs

[chengjoey]

Were there any other uses of bash you could find?

I checked all the busybox examples, and only found this one using bash. others all use sh or directly use command (echo, true, mkdir etc)

[agilgur5]

Nice catch and thanks for double-checking other examples!