ci: fix2

Author: Firestar99

.github/workflows/ci.yaml

@@ -36,7 +36,7 @@ jobs:
       # figure out native target triple while we're at it
       - name: install rust-toolchain
         run: |
-          export TARGET=`rustc --print host-tuple`
+          echo "$TARGET=$(rustc --print host-tuple)" >> $GITHUB_ENV
           echo $TARGET
       # Fetch dependencies in a separate step to clearly show how long each part
       # of the testing takes
@@ -133,7 +133,7 @@ jobs:
           cache: true
       - name: install rust-toolchain
         run: |
-          export TARGET=`rustc --print host-tuple`
+          echo "$TARGET=$(rustc --print host-tuple)" >> $GITHUB_ENV
           echo $TARGET
       - name: cargo fetch --locked
         run: cargo fetch --locked --target $TARGET
@@ -165,7 +165,7 @@ jobs:
           sudo apt install -y xvfb libgl1-mesa-dri libxcb-xfixes0-dev mesa-vulkan-drivers
       - name: install rust-toolchain
         run: |
-          export TARGET=`rustc --print host-tuple`
+          echo "$TARGET=$(rustc --print host-tuple)" >> $GITHUB_ENV
           echo $TARGET
       - name: cargo fetch --locked
         run: cargo fetch --locked --target $TARGET