refactor(dev-infra): use conventional-commits-parser for commit parsing (#41286)

Use conventional-commits-parser for parsing commits for validation, this is being done
in anticipation of relying on this parser for release note creation.  Unifying how commits
are parsed will provide the most consistency in our tooling.

PR Close #41286

dev-infra/commit-message/validate-range/validate-range.ts

@@ -6,15 +6,14 @@
  * found in the LICENSE file at https://angular.io/license
  */
 import {error, info} from '../../utils/console';
-
-import {parseCommitMessagesForRange, ParsedCommitMessage} from '../parse';
+import {Commit, parseCommitMessagesForRange} from '../parse';
 import {printValidationErrors, validateCommitMessage, ValidateCommitMessageOptions} from '../validate';
 
 // Whether the provided commit is a fixup commit.
-const isNonFixup = (commit: ParsedCommitMessage) => !commit.isFixup;
+const isNonFixup = (commit: Commit) => !commit.isFixup;
 
 // Extracts commit header (first line of commit message).
-const extractCommitHeader = (commit: ParsedCommitMessage) => commit.header;
+const extractCommitHeader = (commit: Commit) => commit.header;
 
 /** Validate all commits in a provided git commit range. */
 export function validateCommitRange(range: string) {