chore(deps): update target branch from master to main in dependabot config

Author: mrz1836

.github/dependabot.yml

@@ -31,7 +31,7 @@ updates:
   # ──────────────────────────────────────────────────────────────
   - package-ecosystem: "gomod"
     directory: "/"
-    target-branch: "master"
+    target-branch: "main"
     schedule:
       interval: "weekly"
       day: "monday"
@@ -60,7 +60,7 @@ updates:
   # ──────────────────────────────────────────────────────────────
   - package-ecosystem: "gomod"
     directory: "/example/"
-    target-branch: "master"
+    target-branch: "main"
     schedule:
       interval: "weekly"
       day: "monday"
@@ -89,7 +89,7 @@ updates:
   # ──────────────────────────────────────────────────────────────
   - package-ecosystem: "github-actions"
     directory: "/"
-    target-branch: "master"
+    target-branch: "main"
     schedule:
       interval: "weekly"
       day: "monday"
@@ -112,7 +112,7 @@ updates:
   # ──────────────────────────────────────────────────────────────
   - package-ecosystem: "devcontainers"
     directory: "/"
-    target-branch: "master"
+    target-branch: "main"
     schedule:
       interval: "weekly"
       day: "monday"