RHINENG-14896: fix host_url in notifications

[psegedy]

Secure Coding Practices Checklist GitHub Link

• https://github.com/RedHatInsights/secure-coding-checklist

Secure Coding Checklist

• Input Validation
• Output Encoding
• Authentication and Password Management
• Session Management
• Access Control
• Cryptographic Practices
• Error Handling and Logging
• Data Protection
• Communication Security
• System Configuration
• Database Security
• File Management
• Memory Management
• General Coding Practices

[jira-linking]

Referenced Jiras:
https://issues.redhat.com/browse/RHINENG-14896

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.04%. Comparing base (b2088e4) to head (b0eaa5c).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1570      +/-   ##
==========================================
+ Coverage   58.03%   58.04%   +0.01%     
==========================================
  Files         143      143              
  Lines       11128    11132       +4     
==========================================
+ Hits         6458     6462       +4     
  Misses       4092     4092              
  Partials      578      578              

Flag	Coverage Δ
unittests	58.04% <100.00%> (+0.01%)	⬆️

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