Remove aws_profile from encrypted file to be decrypted

[rafaelcpalmeida]

What this PR does / why we need it:
This PR modifies SOPS to replace aws_profile: my_profile with a blank string.
When using AWS KMS with several profiles, SOPS will add the field aws_profile: my_profile to the encrypted file, which will cause ArgoCD to fail when using helm-secrets to decrypt said file.

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• the CHANGELOG.md release notes have been updated to reflect any significant (and particularly user-facing) changes introduced by this PR

[codecov]

Codecov Report

Merging #226 (be9ae46) into main (f3ef290) will decrease coverage by 0.02%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##             main     #226      +/-   ##
==========================================
- Coverage   84.08%   84.05%   -0.03%     
==========================================
  Files          26       26              
  Lines         735      740       +5     
==========================================
+ Hits          618      622       +4     
- Misses        117      118       +1     

Impacted Files	Coverage Δ
scripts/drivers/sops.sh	78.04% <80.00%> (+0.27%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f3ef290...be9ae46. Read the comment docs.

[jkroepke]

If you are using

AWS_PROFILE=profile sops 

instead

sops --aws-profile profile

sops should not save the aws profile into the yaml file.

[rafaelcpalmeida]

If you are using

AWS_PROFILE=profile sops 

instead

sops --aws-profile profile

sops should not save the aws profile into the yaml file.

Actually I encrypt my secrets using helm secrets enc secret.yaml 🤔 Also, I define the profile I'm using through the .sops.yaml file.

[jkroepke]

AWS_PROFILE=profile helm secrets enc secret.yaml

Should also work

getsops/sops#614 (comment)

[rafaelcpalmeida]

Using that approach encrypts my file and and still adds the aws_profile field. However, it's now aws_profile: "" and that doesn't break ArgoCD 🎉