Fix reading .changeset directory from path provided in cwd parameter (#502)

* Adding informational message about resolved `cwd` location

* Reading changesets information from provided folder

* Adding changeset information

* Apply suggestion from @Andarist

---------

Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com>

.changeset/plenty-areas-tie.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Making sure that `.changeset` information is picked up, when `cwd` parameter is provided

src/index.ts

@@ -20,6 +20,7 @@ const getOptionalInput = (name: string) => core.getInput(name) || undefined;
   }
 
   const cwd = path.resolve(getOptionalInput("cwd") ?? "");
+  core.info(`using resolved cwd: ${cwd}`);
 
   const octokit = setupOctokit(githubToken);
   const commitMode = getOptionalInput("commitMode") ?? "git-cli";
@@ -45,7 +46,7 @@ const getOptionalInput = (name: string) => core.getInput(name) || undefined;
     `machine github.com\nlogin github-actions[bot]\npassword ${githubToken}`
   );
 
-  let { changesets } = await readChangesetState();
+  let { changesets } = await readChangesetState(cwd);
 
   let publishScript = core.getInput("publish");
   let hasChangesets = changesets.length !== 0;