PR: add bump ver check (#2282)

* Add bump-version check into the PR validation workflow

* Check condition for PR

* Setup step and job outputs for conditionals

* Fixup

* Limit fetch depth

* Fix typo

* Use a different checkout pattern

* Bump version

* Fixup conditional for the build stage

* Still allow the build stage even if the bump_version_check stage did found changes, as commits by github actions bot won't triggger actions

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Co-authored-by: GitHub Actions <actions@github.com>

doc/BackersArchive.md

@@ -1,36 +1,36 @@
-# Backers Archive
-
-This is an archive of former backers that sponsored Iosevka’s development during 0.x–2.x period. Iosevka will continue evolving, and thank you for your support.
-
-## Generous Backers
-
-- Cheng-Wei Chien
-- Tianyu Ge
-- (Anonymous User 4362976)
-- Delton Ding
-- Codi Matters
-- Vasily Shmelev
-
-## Backers
-
-- Danny O'Brien
-- Yanjia Huang
-- Leon Breedt
-- Alexander Payne
-- Marek Kubica
-- Yoshito Komatsu
-- Dylan Sinnott
-- robertgzr
-- Pavlos Vinieratos
-- Matthew Piziak
-- Winnie Quinn
-- Clemens
-- Pascal
-- Kevin Sidarous
-- Beni Cherniavsky-Paskin
-- Bartłomiej T. Listwon
-- Will Binns-Smith
-- Jeff S
-- Jeri Mason
-- Michael L. Ward
-- Freetasy
+# Backers Archive
+
+This is an archive of former backers that sponsored Iosevka’s development during 0.x–2.x period. Iosevka will continue evolving, and thank you for your support.
+
+## Generous Backers
+
+- Cheng-Wei Chien
+- Tianyu Ge
+- (Anonymous User 4362976)
+- Delton Ding
+- Codi Matters
+- Vasily Shmelev
+
+## Backers
+
+- Danny O'Brien
+- Yanjia Huang
+- Leon Breedt
+- Alexander Payne
+- Marek Kubica
+- Yoshito Komatsu
+- Dylan Sinnott
+- robertgzr
+- Pavlos Vinieratos
+- Matthew Piziak
+- Winnie Quinn
+- Clemens
+- Pascal
+- Kevin Sidarous
+- Beni Cherniavsky-Paskin
+- Bartłomiej T. Listwon
+- Will Binns-Smith
+- Jeff S
+- Jeri Mason
+- Michael L. Ward
+- Freetasy