docker - remove dependency on types-requests because requests ships types'

Requests 2.34 ships inline type information, so depend on it directly
instead of types-requests:

- types-requests -> requests>=2.34.0: Requests now ships its own type
  information, so the separate stub package is redundant. As per
  #15813 I've added the lower
  bound.

- `Sequence[str]` -> `list[str]`: `APIClient` inherits `Session.__attrs__`,
  which Requests declares as `list[str]`. An overriding mutable attribute
  must keep the same type.

- `ConnectionPool` -> `HTTPConnectionPool`: Requests declares
  `HTTPAdapter.get_connection_with_tls_context()` as returning
  `HTTPConnectionPool`. Docker’s override cannot use the broader
  `ConnectionPool` return type.

Co-Authored-By: Factory Droid (GPT-5.6 Sol)

Author: MaicoTimmerman

stubs/docker/METADATA.toml

@@ -1,6 +1,6 @@
 version = "7.2.*"
 upstream-repository = "https://github.com/docker/docker-py"
-dependencies = ["types-requests", "urllib3>=2"]
+dependencies = ["requests>=2.34.0", "urllib3>=2"]
 optional-dependencies = ["types-paramiko"]
 
 [tool.stubtest]

stubs/docker/docker/api/client.pyi

@@ -1,5 +1,5 @@
 from _typeshed import Incomplete
-from collections.abc import Mapping, Sequence
+from collections.abc import Mapping
 
 import requests
 from docker.tls import TLSConfig
@@ -33,7 +33,7 @@ class APIClient(
     SwarmApiMixin,
     VolumeApiMixin,
 ):
-    __attrs__: Sequence[str]
+    __attrs__: list[str]
     base_url: str
     timeout: int
     credstore_env: Mapping[Incomplete, Incomplete] | None

stubs/docker/docker/transport/basehttpadapter.pyi

@@ -1,7 +1,7 @@
 from collections.abc import Mapping
 
 import requests.adapters
-from urllib3.connectionpool import ConnectionPool
+from urllib3.connectionpool import HTTPConnectionPool
 
 class BaseHTTPAdapter(requests.adapters.HTTPAdapter):
     def close(self) -> None: ...
@@ -11,4 +11,4 @@ class BaseHTTPAdapter(requests.adapters.HTTPAdapter):
         verify: bool | str | None,
         proxies: Mapping[str, str] | None = None,
         cert: tuple[str, str] | str | None = None,
-    ) -> ConnectionPool: ...
+    ) -> HTTPConnectionPool: ...