Use Deno 2.6.x version range instead of pinned 2.6.2

Co-Authored-By: Claude <noreply@anthropic.com>

Author: dahlia

.github/workflows/deploy.yaml

@@ -15,7 +15,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: denoland/setup-deno@v2
       with:
-        deno-version: 2.6.2
+        deno-version: v2.6.x
     - run: deno task check
     - if: github.ref_type == 'branch'
       run: |

mise.toml

@@ -1,2 +1,2 @@
 [tools]
-deno = "2.6.2"
+deno = "2.6"