setup: update requests version >=2.26.0 and makeinstaller.sh

revert https://github.com/streamlink/streamlink/pull/3880

docs/install.rst

@@ -284,8 +284,7 @@ Name                                 Notes
 
 **Automatically installed by the setup script**
 --------------------------------------------------------------------------------
-`python-requests`_                   At least version **2.26.0** |br|
-                                     Temporarily pinpointed to **2.25.1** on Windows (see `#3880`_)
+`python-requests`_                   At least version **2.26.0**
 `pycryptodome`_                      Required to play some encrypted streams
 `iso-639`_                           Used for localization settings, provides language information
 `iso3166`_                           Used for localization settings, provides country information
@@ -313,7 +312,7 @@ With these two environment variables it is possible to use `pycrypto`_ instead o
 
 .. _Python: https://www.python.org/
 .. _python-setuptools: https://pypi.org/project/setuptools/
-.. _python-requests: https://requests.readthedocs.io/en/master/
+.. _python-requests: https://docs.python-requests.org/en/master/
 .. _RTMPDump: https://rtmpdump.mplayerhq.hu/
 .. _pycountry: https://pypi.org/project/pycountry/
 .. _pycrypto: https://www.dlitz.net/software/pycrypto/
@@ -324,7 +323,6 @@ With these two environment variables it is possible to use `pycrypto`_ instead o
 .. _isodate: https://pypi.org/project/isodate/
 .. _PySocks: https://github.com/Anorov/PySocks
 .. _websocket-client: https://pypi.org/project/websocket-client/
-.. _#3880: https://github.com/streamlink/streamlink/pull/3880
 
 
 Windows binaries

script/makeinstaller.sh

@@ -92,16 +92,16 @@ format=bundled
 packages=pkg_resources
          iso639
 pypi_wheels=certifi==2021.5.30
-            chardet==4.0.0
-            idna==2.10
+            charset-normalizer==2.0.4
+            idna==3.2
             iso3166==1.0.1
             isodate==0.6.0
             pycryptodome==3.10.1
             PySocks==1.7.1
-            requests==2.25.1
+            requests==2.26.0
             six==1.16.0
             urllib3==1.26.6
-            websocket-client==1.1.0
+            websocket-client==1.2.1
 
 files=${ROOT}/win32/THIRD-PARTY.txt > \$INSTDIR
       ${ROOT}/build/lib/streamlink > \$INSTDIR\pkgs

setup.py

@@ -10,10 +10,7 @@ import versioneer
 
 data_files = []
 deps = [
-    # Temporarily set requests to 2.25.1 on Windows to fix issues with randomly failing tests
-    # Don't force an older requests version on non-Windows systems due to packaging reasons
-    "requests>=2.26.0,<3.0 ; platform_system!='Windows'",
-    "requests==2.25.1      ; platform_system=='Windows'",
+    "requests>=2.26.0,<3.0",
     "isodate",
     "websocket-client>=0.58.0",
     # Support for SOCKS proxies