feat(inference-operator): Update inference helm chart to v2.1.1 with latest CRDs

[shantanutrip]

What's changing and why?

Update the inference operator helm chart to v2.1.1 from the latest AWSCrescendoInferenceOperator dist.

Changes:

• CRDs: Updated all 3 CRDs (inferenceendpointconfigs, jumpstartmodels, sagemakerendpointregistrations) with latest schema additions
• Chart.yaml: Version bump 2.1.0 → 2.1.1
• values.yaml: Added init container config (image.initContainer.repository/tag) and enableCustomServiceAccounts: false
• config/manager/manager.yaml:
  • Init container image changed from hardcoded public.ecr.aws/bitnami/kubectl:1.30 to templated value
  • Added env vars: AWS_REGION, ENABLE_CUSTOM_SERVICE_ACCOUNTS, OPERATOR_SERVICE_ACCOUNT_NAME, OPERATOR_NAMESPACE
  • HYPERPOD_CLUSTER_ARN made optional with default ""

Before/After UX

Before:

• Inference operator chart at v2.1.0 with older CRD schemas
• Init container using hardcoded public bitnami kubectl image

After:

• Inference operator chart at v2.1.1 with latest CRD schemas
• Init container using configurable private image via values.yaml
• Support for custom service accounts via enableCustomServiceAccounts flag

How was this change tested?

• Validated all CRD YAML files are syntactically correct (parsed with Python yaml.safe_load)
• Verified no remaining pdSpec/DPD references in published CRDs
• Diff verified against source AWSCrescendoInferenceOperator dist

Are unit tests added?

N/A — Helm chart config/CRD update only, no application code changes.

Are integration tests added?

N/A — CRD schema and chart config changes. Integration tests along with HP CLI will handle this.

Reviewer Guidelines

‼️ Merge Requirements: PRs with failing integration tests cannot be merged without justification.

One of the following must be true:

• Changes are documentation-only format?
• [] All automated PR checks pass