fix host release name nil pointer

[steiler]

fixing #2245

[hellt]

love it, thanks @steiler
have only one comment about caching

[codecov]

Codecov Report

Attention: Patch coverage is 76.92308% with 6 lines in your changes missing coverage. Please review.

Project coverage is 51.79%. Comparing base (6859e39) to head (2966ad2).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
utils/file.go	75.00%	4 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2250      +/-   ##
==========================================
- Coverage   52.12%   51.79%   -0.33%     
==========================================
  Files         172      172              
  Lines       12714    16653    +3939     
==========================================
+ Hits         6627     8626    +1999     
- Misses       5174     7111    +1937     
- Partials      913      916       +3     

Files with missing lines	Coverage Δ
nodes/host/host.go	91.89% <100.00%> (+57.04%)	⬆️
utils/file.go	57.99% <75.00%> (-0.70%)	⬇️

... and 161 files with indirect coverage changes