refactor: update dependencies and fix resulting errors

Upgraded JSON Schema from version 6 to version 7
Upgraded TypeDoc version to latest
Replaced 'jsonschema' with 'json-schema' package to better comply with 'ts-json-schema-generator'
Replace JSON Schema validation with AJV in areas where it wasn't used previously
Removed commander help output as it causes strange issues

src/cli.ts

@@ -15,7 +15,7 @@
 import {Logger} from '@openstapps/logger';
 import {Command} from 'commander';
 import {existsSync, readFileSync, writeFileSync} from 'fs';
-import * as got from 'got';
+import got from 'got';
 import {join, resolve} from 'path';
 import {exit} from 'process';
 import {
@@ -158,8 +158,7 @@ commander
       }
 
       const response = await got.put(`${esAddress}_template/${template}`, {
-        body: result.mappings[template],
-        json: true,
+        json: result.mappings[template],
       });
 
       const HTTP_STATUS_OK = 200;
@@ -353,8 +352,3 @@ commander
   });
 
 commander.parse(process.argv);
-
-if (commander.args.length < 1) {
-  commander.outputHelp();
-  process.exit(1);
-}