re-enable dependabot with 2-day cooldown

Rename .disabled configs back and add cooldown: default-days: 2

Signed-off-by: Moe Zein <moe.zein@datadoghq.com>

Author: moezein0

.github/dependabot.yml.disabled .github/dependabot.yml.github/dependabot.yml.disabled renamed to .github/dependabot.yml

@@ -11,7 +11,11 @@ updates:
     patterns: ["*"]
     multi-ecosystem-group: "repo-dependencies"
 
+    cooldown:
+      default-days: 2
   - package-ecosystem: "npm"
     directory: "/"
     patterns: ["*"]
     multi-ecosystem-group: "repo-dependencies"
+    cooldown:
+      default-days: 2