fix(dev-infra): update type castings for JSON.parse usage (#40710)

Update usages of JSON.parse to be cast as specific types.

PR Close #40710

dev-infra/release/build/build.spec.ts

@@ -50,7 +50,7 @@ describe('ng-dev release build', () => {
     expect(writeSpy).toHaveBeenCalledTimes(1);
 
     const jsonText = writeSpy.calls.mostRecent().args[0] as string;
-    const parsed = JSON.parse(jsonText);
+    const parsed = JSON.parse(jsonText) as releaseConfig.BuiltPackage[];
 
     expect(parsed).toEqual([
       {name: '@angular/pkg1', outputPath: 'dist/pkg1'},

dev-infra/release/publish/actions.ts

@@ -82,7 +82,8 @@ export abstract class ReleaseAction {
   /** Updates the version in the project top-level `package.json` file. */
   protected async updateProjectVersion(newVersion: semver.SemVer) {
     const pkgJsonPath = join(this.projectDir, packageJsonPath);
-    const pkgJson = JSON.parse(await fs.readFile(pkgJsonPath, 'utf8'));
+    const pkgJson =
+        JSON.parse(await fs.readFile(pkgJsonPath, 'utf8')) as {version: string, [key: string]: any};
     pkgJson.version = newVersion.format();
     // Write the `package.json` file. Note that we add a trailing new line
     // to avoid unnecessary diff. IDEs usually add a trailing new line.
@@ -558,7 +559,8 @@ export abstract class ReleaseAction {
   private async _verifyPackageVersions(version: semver.SemVer, packages: BuiltPackage[]) {
     for (const pkg of packages) {
       const {version: packageJsonVersion} =
-          JSON.parse(await fs.readFile(join(pkg.outputPath, 'package.json'), 'utf8'));
+          JSON.parse(await fs.readFile(join(pkg.outputPath, 'package.json'), 'utf8')) as
+          {version: string, [key: string]: any};
       if (version.compare(packageJsonVersion) !== 0) {
         error(red('The built package version does not match the version being released.'));
         error(`  Release Version:   ${version.version}`);

dev-infra/release/publish/external-commands.ts

@@ -64,7 +64,7 @@ export async function invokeReleaseBuildCommand(): Promise<BuiltPackage[]> {
     info(green('  ✓   Built release output for all packages.'));
     // The `ng-dev release build` command prints a JSON array to stdout
     // that represents the built release packages and their output paths.
-    return JSON.parse(stdout.trim());
+    return JSON.parse(stdout.trim()) as BuiltPackage[];
   } catch (e) {
     spinner.stop();
     error(e);

dev-infra/release/publish/test/cut-next-prerelease.spec.ts

@@ -49,7 +49,7 @@ describe('cut next pre-release action', () => {
     await expectStagingAndPublishWithoutCherryPick(action, 'master', '10.2.0-next.0', 'next');
 
     const pkgJsonContents = readFileSync(join(action.testTmpDir, packageJsonPath), 'utf8');
-    const pkgJson = JSON.parse(pkgJsonContents);
+    const pkgJson = JSON.parse(pkgJsonContents) as {version: string, [key: string]: any};
     expect(pkgJson.version).toBe('10.2.0-next.0', 'Expected version to not have changed.');
   });
 

dev-infra/release/versioning/version-branches.ts

@@ -35,7 +35,8 @@ export async function getVersionOfBranch(
     repo: GithubRepoWithApi, branchName: string): Promise<semver.SemVer> {
   const {data} = await repo.api.repos.getContents(
       {owner: repo.owner, repo: repo.name, path: '/package.json', ref: branchName});
-  const {version} = JSON.parse(Buffer.from(data.content, 'base64').toString());
+  const {version} = JSON.parse(Buffer.from(data.content, 'base64').toString()) as
+      {version: string, [key: string]: any};
   const parsedVersion = semver.parse(version);
   if (parsedVersion === null) {
     throw Error(`Invalid version detected in following branch: ${branchName}.`);