DEV: Remove `.ruby-version` file (#14818)

DEV: Remove .ruby-version file (#14818)

diff --git a/.ruby-version b/.ruby-version
deleted file mode 100644
index cb2b00e..0000000
--- a/.ruby-version
+++ /dev/null
@@ -1 +0,0 @@
-3.0.1

GitHub sha: b0b6e6d3cc064b1c994fbcda8a7d9d81ed925fde

This commit appears in #14818 which was approved by pmusaraj. It was merged by OsamaSayegh.