Test package imports in CI

Author: thomasjm

.github/workflows/ci.yml

@@ -42,3 +42,8 @@ jobs:
         cd test_depots/${{matrix.test_depot}}
         export NIX_PATH="nixpkgs=$(nix run .#nixpkgsPath)"
         nix-build .
+    - name: Verify packages work
+      run: |
+        cd test_depots/${{matrix.test_depot}}
+        nix-build .
+        ./result/bin/julia ./test.jl

test_depots/1.6.6/test.jl

@@ -0,0 +1,3 @@
+
+import IJulia
+import Plots

test_depots/1.8.3/test.jl

@@ -0,0 +1,3 @@
+
+import IJulia
+import Plots