Use newer versions of actions and Environment Files (#124)

* Use the newer versions of checkout and cache actions

The old ones use node 12 which is unsupported now.

* Use Environment Files instead of the deprecated set-output command

.github/workflows/main.yaml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Setup PHP cache environment"
         id: "extcache"
@@ -34,7 +34,7 @@ jobs:
           key: "${{ env.cache-version }}"
 
       - name: "Cache PHP extensions"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.extcache.outputs.dir }}"
           key: "${{ steps.extcache.outputs.key }}"
@@ -52,10 +52,10 @@ jobs:
 
       - name: "Get Composer cache directory"
         id: "composercache"
-        run: 'echo "::set-output name=dir::$(composer config cache-files-dir)"'
+        run: 'echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT'
 
       - name: "Cache PHP dependencies"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.composercache.outputs.dir }}"
           key: "${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}"
@@ -85,7 +85,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Setup PHP cache environment"
         id: "extcache"
@@ -96,7 +96,7 @@ jobs:
           key: "${{ env.cache-version }}"
 
       - name: "Cache PHP extensions"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.extcache.outputs.dir }}"
           key: "${{ steps.extcache.outputs.key }}"
@@ -114,10 +114,10 @@ jobs:
 
       - name: "Get Composer cache directory"
         id: "composercache"
-        run: 'echo "::set-output name=dir::$(composer config cache-files-dir)"'
+        run: 'echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT'
 
       - name: "Cache PHP dependencies"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.composercache.outputs.dir }}"
           key: "${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}"
@@ -160,7 +160,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Setup PHP cache environment"
         id: "extcache"
@@ -171,7 +171,7 @@ jobs:
           key: "${{ env.cache-version }}"
 
       - name: "Cache PHP extensions"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.extcache.outputs.dir }}"
           key: "${{ steps.extcache.outputs.key }}"
@@ -189,10 +189,10 @@ jobs:
 
       - name: "Get Composer cache directory"
         id: "composercache"
-        run: 'echo "::set-output name=dir::$(composer config cache-files-dir)"'
+        run: 'echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT'
 
       - name: "Cache PHP dependencies"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.composercache.outputs.dir }}"
           key: "${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}"
@@ -227,7 +227,7 @@ jobs:
           --health-retries=3
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Setup PHP cache environment"
         id: "extcache"
@@ -238,7 +238,7 @@ jobs:
           key: "${{ env.cache-version }}"
 
       - name: "Cache PHP extensions"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.extcache.outputs.dir }}"
           key: "${{ steps.extcache.outputs.key }}"
@@ -257,10 +257,10 @@ jobs:
 
       - name: "Get Composer cache directory"
         id: "composercache"
-        run: 'echo "::set-output name=dir::$(composer config cache-files-dir)"'
+        run: 'echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT'
 
       - name: "Cache PHP dependencies"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v3"
         with:
           path: "${{ steps.composercache.outputs.dir }}"
           key: "${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}"