Fix CI failures (#133)

* Bump cache action version to v4

* Explicitly set the sphinx conf path in readthedocs

* Bump python version in the release action

* Make Python version a string

Author: jacobtomlinson

.github/workflows/release.yml

@@ -10,10 +10,10 @@ jobs:
       - name: Checkout source
         uses: actions/checkout@v2
 
-      - name: Set up Python 3.8
-        uses: actions/setup-python@v1
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: "3.10"
 
       - name: Install pypa/build
         run: python -m pip install build wheel pyyaml

.github/workflows/tests.yml

@@ -31,7 +31,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Cache conda
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         env:
           # Increase this value to reset cache if ci/environment.yml has not changed
           CACHE_NUMBER: 0

readthedocs.yml

@@ -1,5 +1,8 @@
 version: 2
 
+sphinx:
+  configuration: docs/source/conf.py
+
 build:
   os: "ubuntu-22.04"
   tools: