chore(deps): update actions/cache digest to 6849a64

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	digest	3624ceb -> 6849a64

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Configuration

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[github-actions]

Run Details - tfws-ops-test

Terraform Cloud Plan Output

Plan: 6 to add, 0 to change, 0 to destroy.

Details : https://app.terraform.io/app/freecodecamp/workspaces/tfws-ops-test/runs/run-z95oD3UETki4YquJ

Warning

Please note that the plan output provided may not accurately reflect the impact on the Terraform project you are currently working on in this Pull Request. The CI checks are merely a sanity test to verify that the versions in the lock file are valid and functional. Confirm the actual Terraform plan by running the corresponding project on your machine or on TFC.