style: fix error [FLY002] - Consider f"{start}-{end}" instead of string join.

Used Ruff (vscode and pre-commit) to:
- Black-compatible code formatting.
- fix all auto-fixable violations.
- isort-compatible import sorting.
- flake8-simplify manual fixes.

Signed-off-by: Paulo Vital <paulo.vital@ibm.com>

Author: pvital

src/instana/instrumentation/google/cloud/storage.py

@@ -27,7 +27,7 @@ def _collect_attributes(
         :param: dict
         :return: dict or None
         """
-        method, path = api_request.get("method", None), api_request.get("path", None)
+        method, path = api_request.get("method"), api_request.get("path")
 
         if method not in _storage_api:
             return
@@ -106,16 +106,16 @@ def download_with_instana(
             span.set_attribute("gcs.bucket", instance.bucket.name)
             span.set_attribute("gcs.object", instance.name)
 
-            start = len(args) > 4 and args[4] or kwargs.get("start", None)
+            start = len(args) > 4 and args[4] or kwargs.get("start")
             if start is None:
                 start = ""
 
-            end = len(args) > 5 and args[5] or kwargs.get("end", None)
+            end = len(args) > 5 and args[5] or kwargs.get("end")
             if end is None:
                 end = ""
 
             if start != "" or end != "":
-                span.set_attribute("gcs.range", "-".join((start, end)))
+                span.set_attribute("gcs.range", f"{start}-{end}")
 
             try:
                 kv = wrapped(*args, **kwargs)