Remove cbgen pin for testing

Author: tomwhite

requirements-dev.txt

@@ -12,7 +12,7 @@ scikit-learn
 partd
 bed-reader
 rechunker
-cbgen < 1.0.5; platform_system != "Windows"
+cbgen; platform_system != "Windows"
 cbgen == 1.0.1; platform_system == "Windows"
 cyvcf2; platform_system != "Windows"
 yarl

setup.cfg

@@ -66,7 +66,7 @@ vcf =
     yarl
 bgen =
     rechunker
-    cbgen < 1.0.5; platform_system != "Windows"
+    cbgen; platform_system != "Windows"
     cbgen == 1.0.1; platform_system == "Windows"
 
 [coverage:report]