drop node 16 from github workflows

We are dropping node 16 support, and have removed it from
the related slapshot reusable workflows already. This PR
drops it from the github workflows for this repo
J=none
TEST=none

Author: Fondryext

.github/workflows/run-tests.yml

@@ -11,15 +11,15 @@ jobs:
     with:
       build_script: |
         npx playwright install
-      node_matrix: '["16.x", "18.x"]'
+      node_matrix: '["18.x"]'
     secrets:
       MAPBOX_API_KEY: ${{ secrets.MAPBOX_API_KEY }}
 
   call_run_tests-react-17:
     uses: yext/slapshot-reusable-workflows/.github/workflows/run_tests.yml@v1
     with:
-      # We have to install these swc libraries manually because 
-      # the post install script doesn't seem to run properly 
+      # We have to install these swc libraries manually because
+      # the post install script doesn't seem to run properly
       # after we install specific versions of packages.
       # More info at https://github.com/swc-project/swc/issues/5616#issuecomment-1651214641
       build_script: |
@@ -39,7 +39,7 @@ jobs:
           "@swc/core-win32-x64-msvc"
         npx playwright install
         npm run build
-      node_matrix: '["16.x", "18.x"]'
+      node_matrix: '["18.x"]'
     secrets:
       MAPBOX_API_KEY: ${{ secrets.MAPBOX_API_KEY }}
 
@@ -63,6 +63,6 @@ jobs:
           "@swc/core-win32-x64-msvc"
         npx playwright install
         npm run build
-      node_matrix: '["16.x", "18.x"]'
+      node_matrix: '["18.x"]'
     secrets:
       MAPBOX_API_KEY: ${{ secrets.MAPBOX_API_KEY }}