chore(ci): update checkout and python actions (#144)

Necessary to deal with Node.js 20 runtime deprecation.

Signed-off-by: Alexandre Sollier <alexandre.sollier@vates.tech>

Author: Kuruyia

.github/workflows/main.yml

@@ -7,9 +7,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v7
       - name: Set up Python 3
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
 
@@ -26,9 +26,9 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v7
       - name: Set up Python 3
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: '3.8' # This version is the closest available to the one currently used in production (3.6).