fix: update CI configuration and remove analytics script

- Upgrade Ruby from deprecated 2.2 to 3.1 in Travis CI
- Remove embedded Google Analytics script from README.md
- Fixes outdated dependencies and improves markdown rendering

Author: Godswill-code

.travis.yml

@@ -1,6 +1,6 @@
 language: ruby
 rvm:
-  - 2.2
+  - 3.1
 before_script:
   - gem install awesome_bot
 script:

README.md

@@ -1220,13 +1220,3 @@ Some data mining competition platforms
 
 ### Hobby
 - [Awesome Music Production](https://github.com/ad-si/awesome-music-production)
-
-<!-- Global site tag (gtag.js) - Google Analytics -->
-<script async src="https://www.googletagmanager.com/gtag/js?id=G-YL0RV0E5XZ"></script>
-<script>
-  window.dataLayer = window.dataLayer || [];
-  function gtag(){dataLayer.push(arguments);}
-  gtag('js', new Date());
-
-  gtag('config', 'G-YL0RV0E5XZ');
-</script>