fix(actions): refactor gh actions to fix CI

[cx-artur-ribeiro]

Reason for Proposed Changes

• Update CI with new security policies;
• Update release process with new security policies;

Proposed Changes

• Updated all dockerfiles under docker/ with pinned versions and removal of dead code/package installation from images that already contain all packages needed;
• Removed deprecated release actions;
• Updated actions with new registry - echo;
• Fix all Zizmor lint issues on actions;

I submit this contribution under the Apache-2.0 license.

[stepsecurity-app]

✅ Resolved — a later workflow run passed this policy check.

Original alert (resolved)

Security Policy Alert: Secret Policy Violation

This workflow run has been blocked by StepSecurity's secrets policy because it accesses secrets and the workflow file differs from the default branch.

Secret references detected:

• secrets.STEP_SECURITY_API_KEY at line 64
• secrets.GITHUB_TOKEN at line 144

To approve this workflow, please add the workflows-approved label to this PR.

Note: The label must be added by someone other than the PR author (cx-artur-ribeiro) or automation bots to ensure proper security review.

After the label is added, you can re-run the blocked workflow to proceed.

This workflow will be automatically approved once merged into the default branch.

For more information, see StepSecurity's Secret Exfiltration Policy documentation.