Update Rails from 2.2.0

[santhosh12992]

Hi,

I am not able to install 2.2.0

smuralik@smuralik-NUC8i7BEH:~/Documents$ rbenv install 2.2.0
Downloading ruby-2.2.0.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.0.tar.bz2
Installing ruby-2.2.0...

WARNING: ruby-2.2.0 is past its end of life and is now unsupported.
It no longer receives bug fixes or critical security updates.


BUILD FAILED (Ubuntu 20.04 using ruby-build 20210309)

Inspect or clean up the working tree at /tmp/ruby-build.20210317090236.68325.aX03NO
Results logged to /tmp/ruby-build.20210317090236.68325.log

Last 10 log lines:
make[4]: Leaving directory '/tmp/ruby-build.20210317090236.68325.aX03NO/ruby-2.2.0/ext/fiddle/libffi-3.2.1'
make[3]: Leaving directory '/tmp/ruby-build.20210317090236.68325.aX03NO/ruby-2.2.0/ext/fiddle/libffi-3.2.1'
linking shared-object fiddle.so
make[2]: Leaving directory '/tmp/ruby-build.20210317090236.68325.aX03NO/ruby-2.2.0/ext/fiddle'
linking shared-object nkf.so
make[2]: Leaving directory '/tmp/ruby-build.20210317090236.68325.aX03NO/ruby-2.2.0/ext/nkf'
linking shared-object date_core.so
make[2]: Leaving directory '/tmp/ruby-build.20210317090236.68325.aX03NO/ruby-2.2.0/ext/date'
make[1]: Leaving directory '/tmp/ruby-build.20210317090236.68325.aX03NO/ruby-2.2.0'
make: *** [uncommon.mk:187: build-ext] Error 2

I think instead of fixing the installation error we can update the repo to use the latest rails and release a new book. Your help is much appreciated.