Use original inflation params (#326)

### Description
<!-- Describe what change this PR is implementing -->

### Types of Changes
<!--- What types of changes does your code introduce? -->
- [ ] Tech Debt (Code improvements)
- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Dependency upgrade (A change in substrate or any 3rd party crate
version)

### Migrations and Hooks
<!--- Check the following box with an x if the following applies: -->
- [ ] This change requires a runtime migration.
- [ ] Modifies `on_initialize`
- [ ] Modifies `on_finalize`

### Checklist
<!--- All boxes need to be checked. Follow this checklist before
requiring PR review -->
- [x] Change has been tested locally.
- [ ] Change adds / updates tests.
- [x] Changelog doc updated.

CHANGELOG.md

@@ -20,6 +20,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - ...
 
+## [5.2.1]
+
+### Changed
+
+- [C,D] Fix inflation parameters for the staking reward curve
 
 ## [5.2.0]
 

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace.package]
-version = "5.2.0"
+version = "5.2.1"
 authors = ["Cerebellum-Network"]
 edition = "2021"
 homepage = "https://cere.network/"

runtime/cere-dev/src/lib.rs

@@ -506,8 +506,8 @@ impl pallet_session::historical::Config for Runtime {
 
 pallet_staking_reward_curve::build! {
 	const REWARD_CURVE: PiecewiseLinear<'static> = curve!(
-		min_inflation: 0_000_200,
-		max_inflation: 0_100_000,
+		min_inflation: 0_000_100,
+		max_inflation: 0_050_000,
 		ideal_stake: 0_200_000,
 		falloff: 0_050_000,
 		max_piece_count: 100,

runtime/cere/src/lib.rs

@@ -501,8 +501,8 @@ impl pallet_session::historical::Config for Runtime {
 
 pallet_staking_reward_curve::build! {
 	const REWARD_CURVE: PiecewiseLinear<'static> = curve!(
-		min_inflation: 0_000_200,
-		max_inflation: 0_100_000,
+		min_inflation: 0_000_100,
+		max_inflation: 0_050_000,
 		ideal_stake: 0_200_000,
 		falloff: 0_050_000,
 		max_piece_count: 100,