feat: add date-time-local and time-local.

Author: ya7010

registries/_format/date-time-local.md

@@ -0,0 +1,15 @@
+---
+owner: ya7010
+issue: 4759
+description: date and time without timezone
+base_type: string
+layout: default
+source_label: TOML
+source: https://toml.io/en/v1.0.0#local-date-time
+---
+
+{% capture summary %}
+The `{{page.slug}}` format represents a date and time without timezone for [TOML Local Date-Time](https://toml.io/en/v1.0.0#local-date-time) compatibility.
+{% endcapture %}
+
+{% include format-entry.md summary=summary %}

registries/_format/time-local.md

@@ -0,0 +1,15 @@
+---
+owner: ya7010
+issue: 4759
+description: time without timezone
+base_type: string
+layout: default
+source_label: TOML
+source: https://toml.io/en/v1.0.0#local-time
+---
+
+{% capture summary %}
+The `{{page.slug}}` format represents a time without timezone for [TOML Local Time](https://toml.io/en/v1.0.0#local-time) compatibility.
+{% endcapture %}
+
+{% include format-entry.md summary=summary %}