Exit pre mode (#714)

* Exit pre mode

* Remove prerelease-only changesets

.changeset/bright-files-raise.md

@@ -1,5 +0,0 @@
----
-"@changesets/action": patch
----
-
-Updated `@changesets/*` dependencies

.changeset/pre.json

@@ -1,4 +1,4 @@
 {
-  "mode": "pre",
+  "mode": "exit",
   "tag": "next"
 }

.changeset/pre/all-cars-grin.md

@@ -1,5 +0,0 @@
----
-"@changesets/action": patch
----
-
-Fix the computed publish plan path passed internally to `changeset pack` by the `/pack` subaction.

.changeset/pre/green-birds-push.md

@@ -1,5 +0,0 @@
----
-"@changesets/action": patch
----
-
-Fixed a regression making it impossible to sync new versions of versioning pull requests with base branch updates when using GitHub API pushes.

.changeset/pre/quick-spoons-smile.md

@@ -1,5 +0,0 @@
----
-"@changesets/action": patch
----
-
-Fix support for prerelease exits using the new `.changeset/pre` layout.

.changeset/pre/ready-mangos-boil.md

@@ -1,5 +0,0 @@
----
-"@changesets/action": patch
----
-
-Fixed usage of `--from-publish-plan` flag used by the `/pack` subaction

.changeset/pre/silent-tips-dance.md

@@ -1,5 +0,0 @@
----
-"@changesets/action": patch
----
-
-Fix the `/version` subaction to not crash on missing `pr-base-branch` input. This input is meant to be optional.