format chore and pre commit hook addition

tests/failing_tests/return.py

@@ -1,14 +1,17 @@
 from pythonbpf import compile, bpf, section, bpfglobal
 from ctypes import c_void_p, c_int64
 
+
 @bpf
 @section("sometag1")
 def sometag(ctx: c_void_p) -> c_int64:
     return c_int64(1 - 1)
 
+
 @bpf
 @bpfglobal
 def LICENSE() -> str:
     return "GPL"
 
+
 compile()