[CI] Only emit .d.ts when running typecheck (#209259)

## Summary
Stop emitting any `.js` files during typechecking. We only depend on the
declarations, not the emitted, compiled javascript files.

An added benefit, is making some bad import errors more obvious.  
We'll no longer try to build javascript files in place if a poor
import/require is made, rather the error of importing outside projects
(in the forest of a bunch of errors possibly) will be visible in the
typescript logs:
```
# instead of:
proc [tsc] error TS5055: Cannot write file '/opt/buildkite-agent/builds/bk-agent-prod-gcp-1741789017236110254/elastic/kibana-pull-request/kibana/src/platform/packages/shared/kbn-babel-register/cache/no_cache_cache.js' because it would overwrite input file.

# we'll see:
... several others like this
 proc [tsc] src/platform/packages/shared/kbn-grok-ui/scripts/generate_patterns.js:10:9 - error TS6307: File '/Users/alex/Git/elastic-kibana/src/setup_node_env/index.js' is not listed within the file list of project '/Users/alex/Git/elastic-kibana/src/platform/packages/shared/kbn-grok-ui/tsconfig.type_check.json'. Projects must list all files or use an 'include' pattern.
 proc [tsc] 
 proc [tsc] 10 require('../../../../../setup_node_env');
... several others like this
```

packages/kbn-dependency-usage/src/lib/group_by_owners.ts

@@ -9,7 +9,7 @@
 
 import { getCodeOwnersForFile, getPathsWithOwnersReversed } from './code_owners.ts';
 
-interface DependencyByOwnerEntry<T = string[]> {
+export interface DependencyByOwnerEntry<T = string[]> {
   modules: T;
   deps: T;
   teams: T;

packages/kbn-ts-type-check-cli/run_type_check_cli.ts

@@ -47,6 +47,8 @@ async function createTypeCheckConfigs(log: SomeDevLog, projects: TsProject[]) {
         ...config.compilerOptions,
         composite: true,
         rootDir: '.',
+        noEmit: false,
+        emitDeclarationOnly: true,
         paths: project.repoRel === 'tsconfig.base.json' ? config.compilerOptions?.paths : undefined,
       },
       kbn_references: undefined,