declare .vscode/*.json as jsonc

gfx · gfx · commit b2c6e508fb1f · 2022-12-20T13:42:23.000+09:00
https://github.com/github/linguist/blob/c1c34e5260797b4d598f5ec76f19723bfc5a1894/docs/overrides.md
diff --git a/.gitattributes b/.gitattributes
@@ -0,0 +1 @@
+.vscode/*.json linguist-language=jsonc
