chore: update workflows to node 20 (#1209)

I missed a few workflows when I updated the node version. We should
update these for consistency.

Signed-off-by: Todd Baert <[email protected]>

Author: toddbaert

.github/workflows/audit-pending-releases.yml

@@ -29,6 +29,6 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
           registry-url: "https://registry.npmjs.org"
           cache: 'npm'

.github/workflows/coverage.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           registry-url: 'https://registry.npmjs.org'
-          node-version: 18
+          node-version: 20
           cache: 'npm'
 
       - name: Install

.github/workflows/release-please.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
       - name: Generate SBOM
         run: |
           npm install -g npm@^10.2.0
@@ -65,7 +65,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
           registry-url: "https://registry.npmjs.org"
           cache: 'npm'
       - name: Build Packages