Add provider cache offline errors handling

[denis256]

Description

This pull request introduces improvements to the provider caching mechanism, specifically targeting scenarios where the system is offline or in an air-gapped environment.

TODOs

Read the Gruntwork contribution guidelines.

• [x] Update the docs.
• [x] Run the relevant tests successfully, including pre-commit checks.
• [x] Ensure any 3rd party code adheres with our license policy or delete this line if its not applicable.
• [x] Include release notes. If this PR is backward incompatible, include a migration guide.

Release Notes (draft)

Added / Removed / Updated [X].

Improved offline error detection in the provider cache to handle air-gapped environments.

Migration Guide