chore: Configure Dependabot to ignore Node.js major version updates (#4821)

- [x] Explore repository structure and identify Node.js version usage
- [x] Identify Dependabot configuration location
- [x] Identify files using Node.js version (Lambda runtime is
nodejs22.x)
- [x] Update Dependabot configuration to ignore Node.js major version
updates
- [x] Add ignore rules for Docker images using Node.js (only in docker
ecosystems)
- [x] Remove incorrect ignore rule from github-actions ecosystem
- [x] Add ignore rule for @types/node in npm ecosystem
- [x] Update comments to reference Lambda runtime as configured via
Terraform
- [x] Test the configuration (YAML syntax validated)

## Summary

Configured Dependabot to ignore major version updates for Node.js to
keep aligned with Lambda runtime as configured via Terraform.

### Changes:
1. Added ignore rule for `@types/node` in npm ecosystem to prevent
TypeScript type definitions from updating to incompatible major versions
2. Added ignore rule for `node` Docker image in `.ci/Dockerfile` updates
3. Added ignore rule for
`mcr.microsoft.com/vscode/devcontainers/typescript-node` in
`.devcontainer/Dockerfile` updates

All ignore rules are configured to block `version-update:semver-major`
updates only, allowing minor and patch updates to continue.

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<details>

<summary>Original prompt</summary>

> Can you make a pr to avoid deprndabot is updating the major node
version since we would like to keep it the same as the runtime used for
lamda


</details>



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Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: npalm <[email protected]>
Co-authored-by: Niek Palm <[email protected]>

Author: Copilot

.github/dependabot.yml

@@ -51,6 +51,10 @@ updates:
     commit-message:
       prefix: "fix(lambda)"
       prefix-development: "chore(lambda)"
+    # Ignore major version updates for Node.js related packages to keep aligned with Lambda runtime as configured via Terraform
+    ignore:
+      - dependency-name: "@types/node"
+        update-types: ["version-update:semver-major"]
 
   - package-ecosystem: "docker"
     directory: "/.ci/Dockerfile"
@@ -61,6 +65,10 @@ updates:
       - "docker"
     commit-message:
       prefix: "chore(docker)"
+    # Ignore major version updates for Node.js Docker images to keep aligned with Lambda runtime as configured via Terraform
+    ignore:
+      - dependency-name: "node"
+        update-types: ["version-update:semver-major"]
 
   - package-ecosystem: "docker"
     directory: "/.devcontainer/Dockerfile"
@@ -71,6 +79,10 @@ updates:
       - "docker"
     commit-message:
       prefix: "chore(devcontainer)"
+    # Ignore major version updates for Node.js Docker images to keep aligned with Lambda runtime as configured via Terraform
+    ignore:
+      - dependency-name: "mcr.microsoft.com/vscode/devcontainers/typescript-node"
+        update-types: ["version-update:semver-major"]
 
   - package-ecosystem: "pip"
     directory: "/.github/workflows/mkdocs"