use official workaround

docs/conf.py

@@ -35,4 +35,4 @@
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+html_static_path = ['_static']

docs/requirements.txt

@@ -1,5 +1,3 @@
 sphinx
 sphinx-rtd-theme
 sphinx-togglebutton
-
-git+https://github.com/git-lfs/git-lfs

readthedocs.yaml

@@ -11,12 +11,22 @@ build:
   os: ubuntu-20.04
   tools:
     python: "3.10"
-  commands:
-    - wget https://github.com/git-lfs/git-lfs/releases/download/v2.7.1/git-lfs-linux-amd64-v2.7.1.tar.gz
-    - tar xvfz git-lfs-linux-amd64-v2.7.1.tar.gz
-    - ./git-lfs install
-    - ./git-lfs fetch
-    - ./git-lfs checkout
+    jobs:
+      post_checkout:
+        # Download and uncompress the binary
+        # https://git-lfs.github.com/
+        - wget https://github.com/git-lfs/git-lfs/releases/download/v3.1.4/git-lfs-linux-amd64-v3.1.4.tar.gz
+        - tar xvfz git-lfs-linux-amd64-v3.1.4.tar.gz
+        # Modify LFS config paths to point where git-lfs binary was downloaded
+        - git config filter.lfs.process "`pwd`/git-lfs filter-process"
+        - git config filter.lfs.smudge  "`pwd`/git-lfs smudge -- %f"
+        - git config filter.lfs.clean "`pwd`/git-lfs clean -- %f"
+        # Make LFS available in current repository
+        - ./git-lfs install
+        # Download content from remote
+        - ./git-lfs fetch
+        # Make local files to have the real content on them
+        - ./git-lfs checkout