fix: revert unrelated dep bumps and fix formatting

Reverts @opentelemetry/exporter-metrics-otlp-http ^0.217.0 back to
^0.214.0 and secretlint ^13.0.0 back to ^12.2.0 — these were
accidentally included in the feature commit from unmerged dependabot PRs
and introduce high-severity protobufjs vulnerabilities.

Restores fast-xml-parser and @aws-sdk/xml-builder overrides that were
also inadvertently removed.

Fixes Prettier formatting on agentcore-project.ts import lines.

Author: notgitika