Chore: fix type errors in tests (#63270)

* fix any's in tests

* fix more any's in tests

* more test type fixes

* fixing any's in tests part 3

* more test type fixes

* fixing test any's p5

* some tidy up

* fix template_srv

packages/grafana-data/src/datetime/parser.test.ts

@@ -1,4 +1,4 @@
-import { systemDateFormats } from './formats';
+import { systemDateFormats, SystemDateFormatsState } from './formats';
 import { dateTimeParse } from './parser';
 
 describe('dateTimeParse', () => {
@@ -10,7 +10,7 @@ describe('dateTimeParse', () => {
   it('should be able to parse using default format', () => {
     systemDateFormats.update({
       fullDate: 'MMMM D, YYYY, h:mm:ss a',
-      interval: {} as any,
+      interval: {} as SystemDateFormatsState['interval'],
       useBrowserLocale: false,
     });