CI: fetch submodules

Author: tmplt

.github/workflows/build.yml

@@ -19,6 +19,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v1
+        with:
+          submodules: recursive
       - name: Install Rust
         uses: actions-rs/toolchain@v1
         with:
@@ -44,6 +46,8 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v1
+        with:
+          submodules: recursive
       - name: Install libusb, libudev # for hidapi in probe-rs
         run: |
           sudo apt update
@@ -60,6 +64,8 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v1
+        with:
+          submodules: recursive
       - name: Install libusb, libudev # for hidapi in probe-rs
         run: |
           sudo apt update
@@ -80,7 +86,9 @@ jobs:
           - stable
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v1
+        with:
+          submodules: recursive
 
       - name: Install libusb, libudev # for hidapi in probe-rs
         run: |
@@ -132,7 +140,9 @@ jobs:
       - build
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v1
+        with:
+          submodules: recursive
       - name: download artifact
         uses: actions/download-artifact@v2
         with: