chore: update renovate configuration (#161)

Author: guillaumejparis

renovate.json

@@ -0,0 +1,35 @@
+{
+    $schema: 'https://docs.renovatebot.com/renovate-schema.json',
+    extends: [
+        'config:recommended',
+        ':semanticCommits',
+    ],
+    labels: [
+        'dependencies',
+        'filigran team',
+    ],
+    minimumReleaseAge: '3 days',
+    prHourlyLimit: 2,
+    prConcurrentLimit: 100,
+    branchConcurrentLimit: 100,
+    timezone: 'Europe/Paris',
+    schedule: [
+        '* 0-4,22-23 * * 1-5',
+        '* * * * 0,6',
+    ],
+    updateNotScheduled: false,
+    rebaseWhen: 'conflicted',
+    vulnerabilityAlerts: {
+        // as we don't rely on Renovate to be informed of dependency security advisories,
+        // vulnerabilityAlerts is disabled since it can cause problems by skipping minimumReleaseAge, schedule and others constraints
+        enabled: false,
+    },
+    // do lock file maintenance once a week on Sunday
+    lockFileMaintenance: {
+        schedule: [
+            '* * * * 0',
+        ],
+        rebaseWhen: 'auto',
+        enabled: true,
+    },
+}