CI: Enable proxy cache in test and build-docs pipelines (#872)

Author: Copilot

.github/workflows/build-docs.yml

@@ -52,8 +52,9 @@ jobs:
           fetch-depth: 0
           ref: ${{ inputs.git-tag }}
 
-      # TODO: cache conda env to speed up the workflow once conda-incubator/setup-miniconda#267
-      # is resolved
+      - name: Setup proxy cache
+        uses: nv-gha-runners/setup-proxy-cache@main
+        continue-on-error: true
 
       - name: Set up miniforge
         uses: conda-incubator/setup-miniconda@835234971496cad1653abb28a638a281cf32541f  # v3.2.0

.github/workflows/test-wheel-linux.yml

@@ -143,6 +143,10 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Setup proxy cache
+        uses: nv-gha-runners/setup-proxy-cache@main
+        continue-on-error: true
+
       - name: Install dependencies
         uses: ./.github/actions/install_unix_deps
         continue-on-error: false

.github/workflows/test-wheel-windows.yml

@@ -89,6 +89,8 @@ jobs:
         with:
           fetch-depth: 0
 
+      # TODO: use setup-proxy-cache once we have self-hosted Windows runners
+
       - name: Update driver
         run: |
           .github/workflows/install_gpu_driver.ps1