fix: update sources for Devops, Data, Security, and ML Engineer occupations to remove Freecodecamp

Author: medyo

src/features/onboarding/components/steps/HelloTab.tsx

@@ -51,28 +51,28 @@ const OCCUPATIONS: Occupation[] = [
     title: 'Devops Engineer',
     value: 'devops',
     icon: FaServer,
-    sources: ['freecodecamp', 'github', 'reddit', 'devto'],
+    sources: ['hackernoon', 'github', 'reddit', 'hackernews'],
     tags: ['devops', 'kubernetes', 'docker', 'bash'],
   },
   {
     title: 'Data Engineer',
     value: 'data',
     icon: FaDatabase,
-    sources: ['freecodecamp', 'github', 'reddit', 'devto'],
+    sources: ['hackernoon', 'github', 'reddit', 'devto'],
     tags: ['data science', 'python', 'artificial intelligence', 'machine learning'],
   },
   {
     title: 'Security Engineer',
     value: 'security',
     icon: AiFillSecurityScan,
-    sources: ['freecodecamp', 'github', 'reddit', 'devto'],
+    sources: ['hackernoon', 'github', 'reddit', 'devto'],
     tags: ['security', 'cpp', 'bash', 'python'],
   },
   {
     title: 'ML Engineer',
     value: 'ai',
     icon: FaRobot,
-    sources: ['github', 'freecodecamp', 'hackernews', 'devto'],
+    sources: ['github', 'hackernoon', 'hackernews', 'devto'],
     tags: ['machine learning', 'artificial intelligence', 'python'],
   },
   {