deps: upgrade to libuv 1.45.0

- linux: introduce io_uring support libuv/libuv#3952
- src: add new metrics APIs libuv/libuv#3749
- unix,win: give thread pool threads an 8 MB stack libuv/libuv#3787
- win,unix: change execution order of timers libuv/libuv#3927

Fixes: #43931
Fixes: #42496
Fixes: #47715
Fixes: #47259
Fixes: #47241
PR-URL: #48078
Backport-PR-URL: #49591
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Author: santigimeno

deps/uv/.mailmap

@@ -29,6 +29,7 @@ Keno Fischer <kenof@stanford.edu> <kfischer+github@college.harvard.edu>
 Keno Fischer <kenof@stanford.edu> <kfischer@college.harvard.edu>
 Leith Bade <leith@leithalweapon.geek.nz> <leith@mapbox.com>
 Leonard Hecker <leonard.hecker91@gmail.com> <leonard@hecker.io>
+Lewis Russell <me@lewisr.dev> <lewis6991@gmail.com>
 Maciej Małecki <maciej.malecki@notimplemented.org> <me@mmalecki.com>
 Marc Schlaich <marc.schlaich@googlemail.com> <marc.schlaich@gmail.com>
 Michael <michael_dawson@ca.ibm.com>
@@ -60,5 +61,7 @@ gengjiawen <technicalcute@gmail.com>
 jBarz <jBarz@users.noreply.github.com> <jbarboza@ca.ibm.com>
 jBarz <jBarz@users.noreply.github.com> <jbarz@users.noreply.github.com>
 ptlomholt <pt@lomholt.com>
+theanarkh <2923878201@qq.com> <theratliter@gmail.com>
 tjarlama <59913901+tjarlama@users.noreply.github.com> <tjarlama@gmail.com>
+ywave620 <rogertyang@tencent.com> <60539365+ywave620@users.noreply.github.com>
 zlargon <zlargon1988@gmail.com>

deps/uv/.readthedocs.yaml

@@ -5,7 +5,10 @@ sphinx:
   configuration: null
   fail_on_warning: false
 
+build:
+  tools:
+    python: "3.9"
+
 python:
-  version: 3.8
   install:
     - requirements: docs/requirements.txt