chore: Use dfinity/setup-dfx for e2e (#518)

.github/workflows/e2e.yml

@@ -27,13 +27,13 @@ jobs:
       - name: Provision Darwin
         if: contains(matrix.os, 'macos')
         run: bash .github/workflows/provision-darwin.sh
-        env:
-          INSTALL_DFX_VERSION: ${{ matrix.dfx }}
       - name: Provision Linux
         if: contains(matrix.os, 'ubuntu')
         run: bash .github/workflows/provision-linux.sh
-        env:
-          INSTALL_DFX_VERSION: ${{ matrix.dfx }}
+      - name: Install DFX
+        uses: dfinity/setup-dfx@main
+        with:
+          dfx-version: ${{ matrix.dfx }}
       - name: Setup for dfx version differences
         run: |
           if [[ "${{ matrix.dfx }}" == "0.8.4" ]]; then

.github/workflows/provision-darwin.sh

@@ -24,11 +24,6 @@ mkdir /usr/local/lib/bats-support
 tar --directory /usr/local/lib/bats-support --extract --file bats-support.tar.gz --strip-components 1
 rm bats-support.tar.gz
 
-# Install DFINITY SDK.
-curl --location --output install-dfx.sh "https://sdk.dfinity.org/install.sh"
-DFX_VERSION="$INSTALL_DFX_VERSION" bash install-dfx.sh < <(yes Y)
-rm install-dfx.sh
-
 # Set environment variables.
 BATS_SUPPORT="/usr/local/lib/bats-support"
 echo "BATS_SUPPORT=${BATS_SUPPORT}" >> "$GITHUB_ENV"

.github/workflows/provision-linux.sh

@@ -21,11 +21,6 @@ sudo mkdir /usr/local/lib/bats-support
 sudo tar --directory /usr/local/lib/bats-support --extract --file bats-support.tar.gz --strip-components 1
 rm bats-support.tar.gz
 
-# Install DFINITY SDK.
-wget --output-document install-dfx.sh "https://sdk.dfinity.org/install.sh"
-DFX_VERSION="$INSTALL_DFX_VERSION" bash install-dfx.sh < <(yes Y)
-rm install-dfx.sh
-
 # Set environment variables.
 BATS_SUPPORT="/usr/local/lib/bats-support"
 echo "BATS_SUPPORT=${BATS_SUPPORT}" >> "$GITHUB_ENV"