Update R-CMD-check.yaml

Signed-off-by: Jessica Ikechukwu <Jessica.Ikechukwu@uwe.ac.uk>

Author: JessUWE

.github/workflows/R-CMD-check.yaml

@@ -1,6 +1,3 @@
-# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
-# Need help debugging build failures?
-# Start at https://github.com/r-lib/actions#where-to-find-help
 on:
   push:
     branches: [main, master]
@@ -15,20 +12,17 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          # default everything
           - { os: "ubuntu-latest", python: "3.13", r: "release" }
           - { os: "windows-latest", python: "3.13", r: "release" }
           - { os: "macOS-latest", python: "3.13", r: "release" }
-          # older R versions
           - { os: "ubuntu-latest", python: "3.10", r: "oldrel-1" }
           - { os: "ubuntu-latest", python: "3.10", r: "oldrel-2" }
           - { os: "ubuntu-latest", python: "3.10", r: "oldrel-3" }
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       R_KEEP_PKG_SOURCE: yes
-      # set matplotlib backend because Windows CI errors with:
-      # "This probably means that Tcl wasn't installed properly."
-      MPLBACKEND: Agg # https://github.com/orgs/community/discussions/26434
+      MPLBACKEND: Agg
+      RETICULATE_PYTHON_ENV: ${{ matrix.python }}
     steps:
       - name: Checkout ACRO
         uses: actions/checkout@v4
@@ -46,12 +40,6 @@ jobs:
       - name: Install Python ACRO
         run: python -m pip install acro
 
-      - name: Configure reticulate Python
-        run: |
-          python -c "import sys; print(sys.executable)" > python_path.txt
-          echo "RETICULATE_PYTHON=$(cat python_path.txt)" >> $GITHUB_ENV
-        shell: bash
-
       - name: Install R dependencies
         uses: r-lib/actions/setup-r-dependencies@v2
         with:
@@ -61,4 +49,3 @@ jobs:
         uses: r-lib/actions/check-r-package@v2
         with:
           upload-snapshots: true
-          build-vignettes: true