Convert Coderanch links to Internet Archive links (#2522)

* Convert Coderanch links to Internet Archive links

* http to https

Author: BNAndras

exercises/grains/metadata.toml

@@ -1,4 +1,4 @@
 title = "Grains"
 blurb = "Calculate the number of grains of wheat on a chessboard given that the number on each square doubles."
 source = "The CodeRanch Cattle Drive, Assignment 6"
-source_url = "https://coderanch.com/wiki/718824/Grains"
+source_url = "https://web.archive.org/web/20240908084142/https://coderanch.com/wiki/718824/Grains"

exercises/leap/metadata.toml

@@ -1,6 +1,6 @@
 title = "Leap"
 blurb = "Determine whether a given year is a leap year."
 source = "CodeRanch Cattle Drive, Assignment 3"
-source_url = "https://coderanch.com/t/718816/Leap"
+source_url = "https://web.archive.org/web/20240907033714/https://coderanch.com/t/718816/Leap"
 deep_dive_youtube_id = "Fj5m16is5hI"
 deep_dive_blurb = "Deep dive into the different algorithms and approaches you can use to solve Leap, as Jeremy and Erik explore interesting Community Solutions across 10 different languages on Exercism."

exercises/say/metadata.toml

@@ -1,4 +1,4 @@
 title = "Say"
 blurb = "Given a number from 0 to 999,999,999,999, spell out that number in English."
 source = "A variation on the JavaRanch CattleDrive, Assignment 4"
-source_url = "https://coderanch.com/wiki/718804"
+source_url = "https://web.archive.org/web/20240907035912/https://coderanch.com/wiki/718804"