Fix redundant await in Promise.all in ast-builder

This commit removes redundant 'await' keywords inside a Promise.all()
call that were causing ESLint errors.

Problem:
ESLint rule '@typescript-eslint/await-thenable' detected that the code
was using 'await' on expressions that were already being passed to
Promise.all(). This is redundant and incorrect:

  await Promise.all([
    await this.cli.bqrsDecode(...),  // ❌ redundant await
    await this.cli.bqrsDecode(...),  // ❌ redundant await
    await this.cli.bqrsDecode(...),  // ❌ redundant await
  ]);

The 'await' inside the array causes each promise to be awaited
sequentially before being added to the array, defeating the purpose
of Promise.all() which is to run them in parallel. ESLint's stricter
type checking (enabled by the Storybook 10 upgrade) now catches this.

Solution:
Remove the redundant 'await' keywords inside the Promise.all() array.
The outer 'await Promise.all(...)' is sufficient:

  await Promise.all([
    this.cli.bqrsDecode(...),  // ✓ returns Promise
    this.cli.bqrsDecode(...),  // ✓ returns Promise
    this.cli.bqrsDecode(...),  // ✓ returns Promise
  ]);

This fixes 3 ESLint errors:
  src/language-support/ast-viewer/ast-builder.ts:36:7
  src/language-support/ast-viewer/ast-builder.ts:37:7
  src/language-support/ast-viewer/ast-builder.ts:38:7

File modified:
- extensions/ql-vscode/src/language-support/ast-viewer/ast-builder.ts

Author: d10c

extensions/ql-vscode/src/language-support/ast-viewer/ast-builder.ts

@@ -33,9 +33,9 @@ export class AstBuilder {
   private async parseRoots(): Promise<AstItem[]> {
     const options = { entities: ["id", "url", "string"] };
     const [nodeTuples, edgeTuples, graphProperties] = await Promise.all([
-      await this.cli.bqrsDecode(this.bqrsPath, "nodes", options),
-      await this.cli.bqrsDecode(this.bqrsPath, "edges", options),
-      await this.cli.bqrsDecode(this.bqrsPath, "graphProperties", options),
+      this.cli.bqrsDecode(this.bqrsPath, "nodes", options),
+      this.cli.bqrsDecode(this.bqrsPath, "edges", options),
+      this.cli.bqrsDecode(this.bqrsPath, "graphProperties", options),
     ]);
 
     if (!this.isValidGraph(graphProperties)) {