Support mise.toml as version-file (input)

.gitignore

@@ -1,3 +1,4 @@
 /node_modules
 /test/.tool-versions
+/test/mise.toml
 /dist/package.json

README.md

@@ -141,23 +141,22 @@ e.g. `${{steps.setup-beam.outputs.erlang-version}}`
 
 ### Version file
 
-A version file is specified via input `version-file` (e.g.`.tool-versions`). This
-allows not having to use YML input for versions, though the action does check (and
+A version file is specified via input `version-file` (e.g. `.tool-versions` or `mise.toml`).
+The file type is inferred from the filename: files ending in `.toml` are parsed as
+[mise](https://mise.jdx.dev/configuration.html#tools-dev-tools) configuration, and all others
+are parsed as [`.tool-versions`](https://asdf-vm.com/manage/configuration.html) (asdf format).
+This allows not having to use YML input for versions, though the action does check (and
 will exit with error) if both inputs are set.
 
 **Note**: if you're using a version file, option `version-type` is checked to be `strict`,
 and will make the action exit with error otherwise.
 
-The following version file formats are supported:
-
-- `.tool-versions`, as specified by [asdf: Configuration](https://asdf-vm.com/manage/configuration.html)
-
 Supported version elements are the same as the ones defined for the YML portion of the action,
 with the following correspondence.
 
-#### `.tool-versions` format
+#### `.tool-versions` / `mise.toml` format
 
-| YML              | `.tool-versions`
+| YML              | Version file key
 |-                 |-
 | `otp-version`    | `erlang`
 | `elixir-version` | `elixir`

action.yml

@@ -69,7 +69,9 @@ inputs:
     required: false
 
   version-file:
-    description: a versions file (e.g. as used by `asdf`), which defines inputs
+    description: >-
+      a versions file (e.g. `.tool-versions` as used by `asdf`, or `mise.toml`
+      as used by `mise`), which defines inputs
     default: ''
     required: false