oidc-exchange: fix herestring style

Author: woodruffw

oidc-exchange.py

@@ -10,8 +10,7 @@
 
 _GITHUB_STEP_SUMMARY = Path(os.getenv("GITHUB_STEP_SUMMARY"))
 
-_TOKEN_RETRIEVAL_FAILED_MESSAGE = dedent(
-    """
+_TOKEN_RETRIEVAL_FAILED_MESSAGE = dedent("""
     OIDC token retrieval failed: {identity_error}
 
     This generally indicates a workflow configuration error, such as insufficient
@@ -110,8 +109,7 @@ def assert_successful_audience_call(resp: requests.Response, domain: str):
         # Token exchange failure normally produces a JSON error response, but
         # we might have hit a server error instead.
         die(
-            dedent(
-                f"""
+            dedent(f"""
                 Token request failed: the index produced an unexpected
                 {mint_token_resp.status_code} response.
 
@@ -127,8 +125,7 @@ def assert_successful_audience_call(resp: requests.Response, domain: str):
     )
 
     # NOTE: Can't `dedent(...)` here because `reasons` is newline-delimited.
-    die(
-        f"""
+    die(f"""
 Token request failed: the server refused the request for the following reasons:
 
 {reasons}
@@ -139,8 +136,7 @@ def assert_successful_audience_call(resp: requests.Response, domain: str):
 pypi_token = mint_token_payload.get("token")
 if pypi_token is None:
     die(
-        dedent(
-            """
+        dedent("""
             Token response error: the index gave us an invalid response.
 
             This strongly suggests a server configuration or downtime issue; wait