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

@@ -9,6 +9,8 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 2
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
@@ -17,3 +19,5 @@ updates:
       gh-actions-packages:
         patterns:
           - "*"
+    cooldown:
+      default-days: 2