feat(config): add pool_domain and upgrade dependencies

- Add configurable pool_domain with pool.ntp.org default
- Update Go from 1.23.5 to 1.24.0
- Update golang.org/x/* dependencies
- Add enumer and accessory as tool dependencies
- Update goreleaser to v2.12.3

.yamllint

@@ -0,0 +1,14 @@
+---
+extends: relaxed
+
+rules:
+  braces:
+    level: error
+  brackets:
+    level: error
+
+  truthy:
+    level: warning
+
+#ignore: |
+#  - ...