chore: update flint to 0.20.4

.editorconfig

@@ -7,7 +7,7 @@ indent_size = 2
 [{version-rules.xml,maven-wrapper.properties,checkstyle.xml,docker-compose.yaml,docker-compose.yml,Dockerfile,example_target_info.json,mise.toml,mvnm,mvnw.cmd,generate-protobuf.sh,.gitleaksignore,prometheus.properties}]
 max_line_length = 200
 
-[{grafana-dashboard-*.json,.editorconfig,super-linter.env,lychee.toml,renovate.json5,CODE_OF_CONDUCT.md}]
+[{grafana-dashboard-*.json,.editorconfig,lychee.toml,renovate.json5,CODE_OF_CONDUCT.md}]
 max_line_length = 300
 
 [pom.xml]

.github/config/.editorconfig-checker.json

@@ -1,4 +1,7 @@
 {
-  "_comment": "Java files are handled by flint, so editorconfig-checker ignores them.",
-  "Exclude": [".*\\.java$"]
+  "Exclude": [
+    ".*\\.java$",
+    ".*\\.md$"
+  ],
+  "_comment": "Java files are handled by flint, so editorconfig-checker ignores them."
 }

.github/config/.rumdl.toml

@@ -0,0 +1,5 @@
+[MD013]
+enabled = true
+line-length = 120
+code-blocks = false
+tables = false

.github/config/.yamllint.yml

@@ -0,0 +1,6 @@
+extends: relaxed
+
+rules:
+  document-start: disable
+  line-length: disable
+  indentation: warning

.github/config/flint.toml

@@ -9,6 +9,4 @@ exclude = [
 ]
 
 [checks.renovate-deps]
-# This inventory is regenerated from the files flint still inspects, so
-# super-linter-era entries drop out when they are excluded or no longer used.
 exclude_managers = ["github-actions", "github-runners", "maven"]

.github/renovate-tracked-deps.json

@@ -67,7 +67,9 @@
   "mise.toml": {
     "mise": [
       "actionlint",
+      "biome",
       "cargo:xmloxide",
+      "cargo:yaml-lint",
       "editorconfig-checker",
       "github:google/google-java-format",
       "github:grafana/flint",
@@ -76,13 +78,11 @@
       "java",
       "lychee",
       "node",
-      "npm:@biomejs/biome",
-      "npm:markdownlint-cli2",
-      "npm:prettier",
       "npm:renovate",
       "pipx:codespell",
       "pipx:ruff",
       "protoc",
+      "rumdl",
       "shellcheck",
       "shfmt"
     ]

.github/renovate.json5

@@ -1,6 +1,6 @@
 {
   $schema: "https://docs.renovatebot.com/renovate-schema.json",
-  extends: ["config:best-practices", "config:recommended", "github>grafana/flint#v0.20.3"],
+  extends: ["config:best-practices", "config:recommended", "github>grafana/flint#v0.20.4"],
   platformCommit: "enabled",
   automerge: true,
   ignorePaths: [

mise.toml

@@ -1,23 +1,23 @@
 [tools]
-"go:github.com/gohugoio/hugo" = "v0.160.1"
-"go:github.com/grafana/oats" = "0.6.1"
-java = "temurin-25.0.3+9.0.LTS"
-lychee = "0.23.0"
-node = "24.15.0"
-"npm:renovate" = "43.129.1"
-protoc = "34.1"
 
 # Linters
 actionlint = "1.7.12"
+biome = "2.4.12"
 "cargo:xmloxide" = "0.4.1"
+"cargo:yaml-lint" = "0.1.0"
 editorconfig-checker = "v3.6.1"
-"github:grafana/flint" = "0.20.3"
 "github:google/google-java-format" = "1.35.0"
-"npm:@biomejs/biome" = "2.4.12"
-"npm:markdownlint-cli2" = "0.22.0"
-"npm:prettier" = "3.8.3"
+"github:grafana/flint" = "0.20.4"
+"go:github.com/gohugoio/hugo" = "v0.160.1"
+"go:github.com/grafana/oats" = "0.6.1"
+java = "temurin-25.0.3+9.0.LTS"
+lychee = "0.23.0"
+node = "24.15.0"
+"npm:renovate" = "43.129.1"
 "pipx:codespell" = "2.4.2"
 "pipx:ruff" = "0.15.11"
+protoc = "34.1"
+rumdl = "0.1.80"
 shellcheck = "v0.11.0"
 shfmt = "3.13.1"
 
@@ -115,3 +115,7 @@ java -jar ./benchmarks/target/benchmarks.jar -rf json -rff benchmark-results.jso
 [tasks."benchmark:generate-summary"]
 description = "Generate summary from existing benchmark-results.json"
 run = "python3 ./.mise/tasks/generate_benchmark_summary.py"
+
+[tasks."lint:pre-commit"]
+description = "Fast auto-fix lint (skips slow checks) — for pre-commit/pre-push hooks"
+run = "flint run --fix --fast-only"