[PR #5436/e4b9e098 backport][stable-5] Clearer error logging in passwordstore lookup

[patchback]

This is a backport of PR #5436 as merged into main (e4b9e09).

(re-creation of ansible/ansible#47120)

SUMMARY

There are many reasons why password store would return exit code 1. Just search for "exit 1" in https://git.zx2c4.com/password-store/tree/src/password-store.sh. This change creates clearer error messages, so one can see what is actually wrong.

Fixes #3759

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

lookup passwordstore

ADDITIONAL INFORMATION

before:

fatal: [testhost-01]: FAILED! => {
    "changed": false,
    "msg": "AnsibleError: An unhandled exception occurred while templating '{{ test_pass }}'. Error was a <class 'ansible.errors.AnsibleError'>, original message: An unhandled exception occurred while templating '{{ lookup(\"passwordstore\", \"{{ test_passwordstore_path }}/test create={{ not ansible_check_mode }}\") }}'. Error was a <class 'ansible.errors.AnsibleError'>, original message: An unhandled exception occurred while running the lookup plugin 'passwordstore'. Error was a <class 'ansible.errors.AnsibleError'>, original message: command ['pass', 'insert', '-f', '-m', u'testpath/test']. returned non-zero exit status 1"
}

after:

fatal: [testhost-01]: FAILED! => {
    "changed": false,
    "msg": "AnsibleError: An unhandled exception occurred while templating '{{ test_pass }}'. Error was a <class 'ansible.errors.AnsibleError'>, original message: An unhandled exception occurred while templating '{{ lookup(\"passwordstore\", \"{{ test_passwordstore_path }}/test create={{ not ansible_check_mode }}\") }}'. Error was a <class 'ansible.errors.AnsibleError'>, original message: An unhandled exception occurred while running the lookup plugin 'passwordstore'. Error was a <class 'ansible.errors.AnsibleError'>, original message: exit code 1 while running ['pass', 'insert', '-f', '-m', u'testpath/test']. Error output: Enter contents of testpath/test and press Ctrl+D when finished:\n\ngpg: ABCDEF0123456789: There is no assurance this key belongs to the named user\ngpg: [stdin]: encryption failed: Unusable public key\nPassword encryption aborted.\n"
}