add dvc webdav plugin

.dvc/config

@@ -1,4 +1,4 @@
 [core]
     remote = nas
 ['remote "nas"']
-    url = https://webdav.guineapig.love/home/dvc
+    url = webdavs://webdav.guineapig.love/home/dvc

env/pt.yaml

@@ -10,6 +10,7 @@ dependencies:
   - amqp=5.2.0
   - annotated-types=0.6.0
   - antlr-python-runtime=4.9.3
+  - anyio=4.2.0
   - aom=3.7.1
   - appdirs=1.4.4
   - async-timeout=4.0.3
@@ -54,8 +55,10 @@ dependencies:
   - dvc-render=1.0.0
   - dvc-studio-client=0.18.0
   - dvc-task=0.3.0
+  - dvc-webdav=3.0.0
   - dvclive=3.5.1
   - entrypoints=0.4
+  - exceptiongroup=1.2.0
   - expat=2.5.0
   - ffmpeg=6.1.0
   - filelock=3.13.1
@@ -89,8 +92,14 @@ dependencies:
   - gtk2=2.24.33
   - gto=1.6.1
   - gts=0.7.6
+  - h11=0.14.0
+  - h2=4.1.0
   - harfbuzz=8.3.0
+  - hpack=4.0.0
+  - httpcore=1.0.2
+  - httpx=0.26.0
   - hydra-core=1.3.2
+  - hyperframe=6.0.1
   - icu=73.2
   - idna=3.6
   - importlib-metadata=7.0.1
@@ -211,6 +220,7 @@ dependencies:
   - shtab=1.6.5
   - six=1.16.0
   - smmap=5.0.0
+  - sniffio=1.3.0
   - sqltrie=0.11.0
   - svt-av1=1.8.0
   - sympy=1.12
@@ -232,6 +242,7 @@ dependencies:
   - vine=5.0.0
   - voluptuous=0.14.1
   - wcwidth=0.2.12
+  - webdav4=0.9.8
   - wheel=0.42.0
   - x264=1!164.3095
   - x265=3.5