Update testsuite.yml

use actions@v4 and npm@stable

Author: atoomic

.github/workflows/testsuite.yml

@@ -19,11 +19,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: perl -V
         run: perl -V
       - name: Install dependencies
-        uses: perl-actions/install-with-cpm@v1
+        uses: perl-actions/install-with-cpm@stable
         with:
           cpanfile: "cpanfile"
           args: "--with-test --with-develop --with-requires --with-build"
@@ -68,11 +68,11 @@ jobs:
       image: perldocker/perl-tester:${{ matrix.perl-version }}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: perl -V
         run: perl -V
       - name: Install dependencies
-        uses: perl-actions/install-with-cpm@v1
+        uses: perl-actions/install-with-cpm@stable
         with:
           cpanfile: "cpanfile"
           sudo: false
@@ -95,13 +95,13 @@ jobs:
       PERL_CARTON_PATH: $GITHUB_WORKSPACE/local
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Perl
         run: brew install perl
       - name: perl -V
         run: perl -V
       - name: Install dependencies
-        uses: perl-actions/install-with-cpm@v1
+        uses: perl-actions/install-with-cpm@stable
         with:
           cpanfile: "cpanfile"
           sudo: false