Update to node20

.github/workflows/lint.yml

@@ -25,7 +25,10 @@ jobs:
       run:
         shell: bash -el {0}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
       - run: |
           npm install
           npm run check

CONTRIBUTING.md

@@ -11,11 +11,11 @@ convention, are also checked in.
 
 - Create Conda env with `nodejs`:
 
-We use NodeJS version 16 for now.
+We use NodeJS version 20 for now.
 
 ```bash
-conda create -n github-action nodejs=16 -c conda-forge
-conda activate
+conda create -n github-action nodejs=20 -c conda-forge
+conda activate github-action
 ```
 
 - Install NodeJS dependencies:

action.yml

@@ -3,7 +3,7 @@ author: Gonzalo Peña-Castellanos (@goanpeca)
 description: "Set up Conda package and environment manager with Miniconda."
 
 runs:
-  using: "node16"
+  using: "node20"
   main: "dist/setup/index.js"
   post: "dist/delete/index.js"
   post-if: "success() && env.INPUT_RUN_POST == 'true'"