refactor(skills): remove caveman ref_env

Author: tmeckel

skills.yaml

@@ -28,46 +28,39 @@ skills:
       - type: git-export
         repo: JuliusBrussee/caveman
         path: skills/caveman
-        ref_env: CAVEMAN_RESOLVED_REF
 
   - name: caveman-commit
     steps:
       - type: git-export
         repo: JuliusBrussee/caveman
         path: skills/caveman-commit
-        ref_env: CAVEMAN_RESOLVED_REF
 
   - name: caveman-review
     steps:
       - type: git-export
         repo: JuliusBrussee/caveman
         path: skills/caveman-review
-        ref_env: CAVEMAN_RESOLVED_REF
 
   - name: caveman-help
     steps:
       - type: git-export
         repo: JuliusBrussee/caveman
         path: skills/caveman-help
-        ref_env: CAVEMAN_RESOLVED_REF
 
   - name: caveman-stats
     steps:
       - type: git-export
         repo: JuliusBrussee/caveman
         path: skills/caveman-stats
-        ref_env: CAVEMAN_RESOLVED_REF
 
   - name: caveman-compress
     steps:
       - type: git-export
         repo: JuliusBrussee/caveman
         path: skills/caveman-compress
-        ref_env: CAVEMAN_RESOLVED_REF
 
   - name: cavecrew
     steps:
       - type: git-export
         repo: JuliusBrussee/caveman
         path: skills/cavecrew
-        ref_env: CAVEMAN_RESOLVED_REF