bump packaged node version

- bump packaged oclif node version to latest LTS (20.13.1)
- bump node version for CI workflows to 20.x
- keep supported version in package.json to >=18.0.0

.github/workflows/awesome-lint.yaml

@@ -14,7 +14,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: '20.x'
       - name: Check awesome-list linter
         # https://github.com/sindresorhus/awesome/blob/main/pull_request_template.md
         run: npx --yes awesome-lint ./README.md

.github/workflows/check-package-mismatches.yaml

@@ -12,6 +12,6 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: '20.x'
       - name: Check mismatched dependencies in workspace
         run: npx --yes syncpack@11.2.1 check-mismatches

.github/workflows/gh-release.yaml

@@ -27,7 +27,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: '18.x'
+          node-version: '20.x'
           cache: yarn
 
       - run: yarn

.github/workflows/lint.yaml

@@ -15,7 +15,7 @@ jobs:
 
     - uses: actions/setup-node@v4
       with:
-        node-version: '18.x'
+        node-version: '20.x'
         cache: yarn
 
     - run: yarn

.github/workflows/npm-publish-canary.yaml

@@ -26,7 +26,7 @@ jobs:
 
     - uses: actions/setup-node@v4
       with:
-        node-version: '18.x'
+        node-version: '20.x'
         cache: yarn
 
     - run: yarn

.github/workflows/test.yaml

@@ -13,7 +13,7 @@ jobs:
 
     - uses: actions/setup-node@v4
       with:
-        node-version: '18.x'
+        node-version: '20.x'
         cache: yarn
 
     - run: yarn
@@ -31,7 +31,7 @@ jobs:
 
     - uses: actions/setup-node@v4
       with:
-        node-version: '18.x'
+        node-version: '20.x'
         cache: yarn
 
     - run: yarn

packages/cli/package.json

@@ -94,9 +94,9 @@
     "topicSeparator": " ",
     "update": {
       "node": {
-        "version": "18.19.0",
+        "version": "20.13.1",
         "options": [
-          "--no-warnings=ExperimentalWarning",
+          "--disable-warning=ExperimentalWarning",
           "--enable-source-maps"
         ]
       },