ci: bump dependabot PR limit to 10

Author: ViRb3

.github/dependabot.yml

@@ -7,6 +7,7 @@ updates:
     commit-message:
       prefix: "fix"
       include: "scope"
+    open-pull-requests-limit: 10
 
   - package-ecosystem: "docker"
     directory: "/"
@@ -15,6 +16,7 @@ updates:
     commit-message:
       prefix: "fix"
       include: "scope"
+    open-pull-requests-limit: 10
 
   - package-ecosystem: "github-actions"
     directory: "/"
@@ -23,3 +25,4 @@ updates:
     commit-message:
       prefix: "fix"
       include: "scope"
+    open-pull-requests-limit: 10