Upgrade node from v20 to v24. (#379)

As mentioned in #366, github basically forces us to do so.
The intermediate step to v22 may not be that insightful, so we may go
to v24 directly.

Signed-off-by: Kurt Garloff <kurt@garloff.de>

Author: garloff

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v3
         with:
-          node-version: 20
+          node-version: 24
       - name: Cache dependencies
         uses: actions/cache@v3
         with:

.github/workflows/build_and_deploy.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v3
         with:
-          node-version: 20
+          node-version: 24
 
       - name: Cache dependencies
         uses: actions/cache@v3

.github/workflows/build_and_staging.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v3
         with:
-          node-version: 20
+          node-version: 24
 
       - name: Cache dependencies
         uses: actions/cache@v3

.nvmrc

@@ -1 +1 @@
-v20
+v24