Update dependency himl to v0.16.4 (#175)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements.txt

@@ -14,6 +14,6 @@ hvac==1.2.1
 passgen
 inflection==0.5.1
 kubernetes==33.1.0
-himl==0.15.2
+himl==0.16.4
 six
 GitPython==3.1.*