fix: add flake, autoconf, cargo lock

Signed-off-by: Christina Sørensen <christina@cafkafk.com>

src/info/filetype.rs

@@ -33,12 +33,17 @@ impl FileExtensions {
                     | "build.gradle"
                     | "build.sbt"
                     | "build.xml"
+                    | "Cargo.lock"
                     | "Cargo.toml"
                     | "CMakeLists.txt"
                     | "composer.json"
+                    | "configure.ac"
+                    | "Configure.ac"
                     | "Containerfile"
                     | "Dockerfile"
                     | "Earthfile"
+                    | "flake.lock"
+                    | "flake.nix"
                     | "Gemfile"
                     | "GNUmakefile"
                     | "Gruntfile.coffee"
@@ -46,6 +51,8 @@ impl FileExtensions {
                     | "Justfile"
                     | "Makefile"
                     | "makefile"
+                    | "Makefile.in"
+                    | "makefile.in"
                     | "meson.build"
                     | "mix.exs"
                     | "package.json"