Use only width when rendering <img> tags

[uhafner]

Using width and height seems broken in GitHub now.

Example: uhafner/codingstyle#1838 (comment)

[github-actions]

☀️   Quality Monitor

Tests

     Unit Tests: ✅ successful — 279 passed
   ⛔   Architecture Tests: ✅ successful — 10 passed

Coverage for New Code

   〰️   Line Coverage: 100.00% — perfect 🎉
   ➰   Branch Coverage: 100.00% — perfect 🎉
     Mutation Coverage: 50.00% — 1 survived mutations
   💪   Test Strength: 100.00% — perfect 🎉

Coverage for Whole Project

   〰️   Line Coverage: 86.40% — 242 missed lines
   ➰   Branch Coverage: 82.86% — 102 missed branches
     Mutation Coverage: 78.89% — 209 survived mutations
   💪   Test Strength: 84.25% — 146 survived mutations in tested code

Style

     CheckStyle: No warnings
     PMD: No warnings
   ☕   Java Compiler: No warnings

Bugs

     SpotBugs: No bugs
   🐛   Error Prone: No bugs

API Problems

   🚫   Revapi: 4 warnings — low: 4

Vulnerabilities

   🛡️   OWASP Dependency Check: 6 vulnerabilities — normal: 6

Software Metrics

   🌀   Cyclomatic Complexity: 873 (total)
   💭   Cognitive Complexity: 351 (total)
   ➿   N-Path Complexity: 986 (total)
   📏   Lines of Code: 6779 (total)
   📝   Non Commenting Source Statements: 2475 (total)
   🔗   Class Cohesion: 100.00% (maximum)
   ⚖️   Weight of Class: 100.00% (maximum)

🚦 Quality Gates

Overall Status: ❗ UNSTABLE

✅ Passed Gates

• ✅ Overall Tests Success Rate: 100.00 >= 100.00
• ✅ Line Coverage in New Code: 100.00 >= 90.00
• ✅ Branch Coverage in New Code: 100.00 >= 90.00
• ✅ Potential Bugs in Whole Project: 0.00 <= 0.00
• ✅ Style Violation in Whole Project: 0.00 <= 0.00

❌ Failed Gates

• ❌ Mutation Coverage in New Code: 50.00 >= 90.00

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Created by Quality Monitor v4.10.0 (#a182a22). More details are shown in the GitHub Checks Result.