feat(manager/mise): add support for tart (renovatebot#42094)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mnm364

lib/modules/manager/mise/extract.spec.ts

@@ -86,6 +86,7 @@ describe('modules/manager/mise/extract', () => {
       swiftformat = "0.58.0"
       swiftlint = "0.55.1"
       taplo = "0.10.0"
+      tart = "2.31.0"
       terragrunt = "0.72.6"
       tilt = "0.34.0"
       tusd = "2.8.0"
@@ -328,6 +329,12 @@ describe('modules/manager/mise/extract', () => {
             depName: 'taplo',
             packageName: 'tamasfe/taplo',
           },
+          {
+            currentValue: '2.31.0',
+            datasource: 'github-releases',
+            depName: 'tart',
+            packageName: 'cirruslabs/tart',
+          },
           {
             currentValue: '0.72.6',
             datasource: 'github-releases',

lib/modules/manager/mise/upgradeable-tooling.ts

@@ -480,6 +480,13 @@ const miseRegistryTooling: Record<string, ToolingDefinition> = {
       datasource: GithubReleasesDatasource.id,
     },
   },
+  tart: {
+    misePluginUrl: 'https://mise.jdx.dev/registry.html#tools',
+    config: {
+      packageName: 'cirruslabs/tart',
+      datasource: GithubReleasesDatasource.id,
+    },
+  },
   terragrunt: {
     misePluginUrl: 'https://mise.jdx.dev/registry.html#tools',
     config: {