chore: run CI with node 20 (#2574)

openvsx currently fails on deploy because it requires it

Author: dummdidumm

.github/workflows/CI.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           cache: pnpm
 
       # Get projects set up
@@ -31,7 +31,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           cache: pnpm
 
       # Lets us use one-liner JSON manipulations the package.json files
@@ -56,7 +56,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           cache: pnpm
 
       # Get projects set up

.github/workflows/DeployExtensionsProd.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           registry-url: "https://registry.npmjs.org"
           cache: pnpm
 

.github/workflows/DeploySvelte2tsxProd.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           registry-url: "https://registry.npmjs.org"
           cache: pnpm
 

.github/workflows/DeploySvelteCheckProd.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           registry-url: "https://registry.npmjs.org"
           cache: pnpm
 

.github/workflows/DeploySvelteLanguageServerProd.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           registry-url: "https://registry.npmjs.org"
           cache: pnpm
 

.github/workflows/DeployTypescriptPluginProd.yaml

@@ -17,7 +17,7 @@ jobs:
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "18.x"
+          node-version: "20.x"
           registry-url: "https://registry.npmjs.org"
           cache: pnpm