chore(meta): bump supported Deserve and Deno versions

- Bump Deno requirement to 2.8.3 in CONTRIBUTING
- Bump Deserve and Deno placeholders in bug report template
- Update SECURITY supported versions to 0.15.x

Author: NeaByteLab

.github/ISSUE_TEMPLATE/1-bug-report.yml

@@ -13,14 +13,14 @@ body:
   - type: input
     attributes:
       label: What version of Deserve are you using?
-      placeholder: 0.12.0
+      placeholder: 0.15.0
     validations:
       required: true
   - type: input
     attributes:
       label: What version of Deno are you running?
       description: Deserve runs on the Deno runtime, so the Deno version matters.
-      placeholder: 2.7.0
+      placeholder: 2.8.3
     validations:
       required: true
   - type: input

CONTRIBUTING.md

@@ -21,7 +21,7 @@ You may use AI to help you contribute, but it must never waste a maintainer's ti
 
 Deserve runs on the Deno runtime and nothing from npm, so there is no `node_modules/` to install.
 
-- [Deno](https://github.com/denoland/deno_install) 2.7.0 or later
+- [Deno](https://github.com/denoland/deno_install) 2.8.3 or later
 
 ## Local Development
 

SECURITY.md

@@ -8,8 +8,8 @@ Deserve is pre-1.0, so fixes land on the latest release. Stay current to receive
 
 | Version | Supported |
 | ------- | --------- |
-| 0.12.x  | Yes       |
-| < 0.12  | No        |
+| 0.15.x  | Yes       |
+| < 0.15  | No        |
 
 ## Reporting a Vulnerability