ci: Now installs build

Author: Alan Christie

.github/workflows/build.yaml

@@ -40,6 +40,7 @@ jobs:
     - name: Install requirements
       run: |
         python -m pip install --upgrade pip
+        python -m pip install --upgrade build
         pip install -r requirements.txt
         pip install -r build-requirements.txt
     - name: Test

.github/workflows/publish.yaml

@@ -39,7 +39,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r build-requirements.txt
+        python -m pip install --upgrade build
     - name: Build
       run: |
         python -m build --sdist --wheel --outdir dist/