ci: converting to earthly/actions-setup@v1 (#20)

Author: DeveloperC286

.github/workflows/continuous-integration.yml

@@ -12,7 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Earthly v0.8.6.
-        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+        uses: earthly/actions-setup@v1
+        with:
+          version: v0.8.6
       - name: Checkout code.
         uses: actions/checkout@v4
       - name: Compile.

.github/workflows/conventional-commits.yml

@@ -12,7 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Earthly v0.8.6.
-        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+        uses: earthly/actions-setup@v1
+        with:
+          version: v0.8.6
       - name: Checkout code.
         uses: actions/checkout@v4
         with:

.github/workflows/git-history.yml

@@ -12,7 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Earthly v0.8.6.
-        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+        uses: earthly/actions-setup@v1
+        with:
+          version: v0.8.6
       - name: Checkout code.
         uses: actions/checkout@v4
         with:

.github/workflows/github-actions-workflows.yml

@@ -12,7 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Earthly v0.8.6.
-        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+        uses: earthly/actions-setup@v1
+        with:
+          version: v0.8.6
       - name: Checkout code.
         uses: actions/checkout@v4
       - name: Check GitHub Actions workflows linting.
@@ -22,7 +24,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Earthly v0.8.6.
-        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+        uses: earthly/actions-setup@v1
+        with:
+          version: v0.8.6
       - name: Checkout code.
         uses: actions/checkout@v4
       - name: Check formatting.