Shift to just looking for libdiscid.so to prevent future problems
if the libdiscid major gets bumped.

Index: discid/libdiscid.py
--- discid/libdiscid.py.orig
+++ discid/libdiscid.py
@@ -62,7 +62,7 @@ def _find_library(name: str, version: int = 0) -> str:
     else:
         # that would be linux/UNIX-like
         # these need to prepend ./
-        lib_name = f"./lib{name}.so.{version}"
+        lib_name = f"./lib{name}.so"
         if os.path.isfile(lib_name):
             lib_file = lib_name
 
