bump GH actions versions (#437)

Author: LPardue

.github/workflows/archive.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: "Checkout"
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: "Update Archive"
       uses: martinthomson/i-d-template@v1
@@ -27,6 +27,6 @@ jobs:
         token: ${{ secrets.GITHUB_TOKEN }}
 
     - name: "Save Archive"
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         path: archive.json

.github/workflows/ghpages.yml

@@ -20,8 +20,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: "Checkout"
-      uses: actions/checkout@v2
-    
+      uses: actions/checkout@v4
+
     - name: Install System Dependencies
       run: sudo apt-get install --yes libyaml-dev openssl ruby-dev
 
@@ -33,7 +33,7 @@ jobs:
         date -u "+::set-output name=date::%FT%T"
 
     - name: "Cache References"
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: |
           ${{ steps.cache-setup.outputs.path }}
@@ -54,7 +54,7 @@ jobs:
         token: ${{ secrets.GITHUB_TOKEN }}
 
     - name: "Archive Built Drafts"
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         path: |
           draft-*.html

.github/workflows/publish.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: "Checkout"
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     # See https://github.com/actions/checkout/issues/290
     - name: "Get Tag Annotations"
@@ -25,7 +25,7 @@ jobs:
         date -u "+::set-output name=date::%FT%T"
 
     - name: "Cache References"
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: |
           ${{ steps.cache-setup.outputs.path }}
@@ -44,6 +44,6 @@ jobs:
         make: upload
 
     - name: "Archive Submitted Drafts"
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         path: "draft-*-[0-9][0-9].xml"