Modify some EBS and RDS actions to allow partial results

[ravikiranvm]

Part of OPS-4065.

AWS Actions being modified in this PR:

1. RDS Get Instances
2. RDS Get Snapshots
3. EBS Get Volumes

I will open another PR for Compute Optimiser actions.

Additional Notes

[linear]

OPS-4065 Modify AWS Block Actions to run on `best effort` basis

[Copilot]

Pull request overview

Adds “allow partial results” support to selected AWS EBS and RDS describe helpers/actions so workflows can return successful regional results while reporting which regions failed.

Changes:

• Introduces a shared PartialResult / FailedRegion model and error formatter (partial-result.ts) and reuses it in existing EC2 code.
• Adds new *AllowPartial helpers for RDS (instances/snapshots) and EBS volumes that use Promise.allSettled to collect successes + failed regions.
• Extends AWS block actions (RDS instances/snapshots, EBS volumes) with an allowPartialResults checkbox to switch output shape to { results, failedRegions }.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
packages/openops/src/lib/aws/partial-result.ts	New shared types/util for partial results and error formatting.
packages/openops/src/lib/aws/ec2/ec2-get-instances.ts	Refactors to import partial-result types/util from the new shared module.
packages/openops/src/lib/aws/rds/rds-describe.ts	Adds describeRds*AllowPartial APIs and refactors per-region fetch helpers.
packages/openops/src/lib/aws/ebs/get-ebs-volumes.ts	Adds getEbsVolumesAllowPartial using settled promises and shared metadata model.
packages/openops/src/index.ts	Re-exports the new partial-result module.
packages/blocks/aws/src/lib/actions/rds/rds-describe-snapshots-action.ts	Adds allowPartialResults option and returns partial shape when enabled.
packages/blocks/aws/src/lib/actions/rds/rds-describe-instances-action.ts	Adds allowPartialResults option and returns partial shape when enabled.
packages/blocks/aws/src/lib/actions/ebs/ebs-get-volumes-action.ts	Adds allowPartialResults option and returns partial shape when enabled.
packages/openops/test/aws/rds/rds-describe.test.ts	Adds unit tests for the new RDS allow-partial helpers.
packages/openops/test/aws/ebs/ebs-get-volumes.test.ts	Adds unit tests for the new EBS allow-partial helper.
packages/blocks/aws/test/rds/rds-describe-snapshots-action.test.ts	Updates action props expectations and adds allow-partial behavior tests.
packages/blocks/aws/test/rds/rds-describe-instances-action.test.ts	Updates action props expectations and adds allow-partial behavior tests.
packages/blocks/aws/test/ebs/ebs-get-volumes-action.test.ts	Updates action props expectations and adds allow-partial behavior tests.

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[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
3.4% Duplication on New Code

See analysis details on SonarQube Cloud