Deprecate legacy staking (#99)

* add post balance to MineEvent log

* log input hash

* deprecate legacy staking

* update error message

* remove stake from readme

* err msg

* err msg

* update logs and comments

* consolidate logs

* last hash at

* bump version

* deprecate legacy staking

* update error message

* remove stake from readme

* err msg

* err msg

* bump version

---------

Co-authored-by: tonton-sol <19677766+tonton-sol@users.noreply.github.com>
Co-authored-by: alex <aabinaei@gmail.com>

Cargo.lock

@@ -1287,7 +1287,7 @@ checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"
 
 [[package]]
 name = "ore-api"
-version = "2.3.0"
+version = "2.4.0"
 dependencies = [
  "array-const-fn-init",
  "bytemuck",
@@ -1323,7 +1323,7 @@ dependencies = [
 
 [[package]]
 name = "ore-program"
-version = "2.3.0"
+version = "2.4.0"
 dependencies = [
  "drillx",
  "mpl-token-metadata",