Example `hookSource` incorrectly uses Bash instead of `sh`

Page URL

https://docs.netapp.com/us-en/trident/trident-protect/trident-protect-use-execution-hooks.html

Page title

Manage Trident Protect execution hooks

Summary

The ExecHook example uses an invalid hookSource:

https://github.com/NetAppDocs/trident/blob/b0d5f95844a49792a1e6e70c6b93c6241943aef5/trident-protect/trident-protect-use-execution-hooks.adoc?plain=1#L126

The script is IyEvYmluL2Jhc2gKZWNobyAiZXhhbXBsZSBzY3JpcHQiCg== which decodes to this script:

#!/bin/bash
echo "example script"

This indicates that Bash should be used to execute the script, while the ExecHook will actually invoke the script using sh. I found this out by some long bouts with trial and error when I found out that my documented examples did not work as expected.

This should be changed to something like #!/usr/bin/env sh for correctness.

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