Point to most recent earthly + cd to root on build

.github/workflows/docker-nightly-earthly.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download latest earthly
-        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.6.14/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.6.16/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
 
       - name: Earthly version
         run: earthly --version

build/release/docker-nightly-earthly.sh

@@ -8,6 +8,9 @@ VERSION="${DATE}-nightly"
 
 echo "Building Docker image ${DOCKER_IMAGE}..."
 
+# Change to the root directory of the repository
+cd $(git rev-parse --show-toplevel)
+
 earthly --ci --push +docker --image="ghcr.io/owncast/${DOCKER_IMAGE}" --tag=nightly --version=${VERSION}
 
 # docker push ghcr.io/owncast/${DOCKER_IMAGE}:nightly