Bump Kotlin dev version to 1.7.0-Beta (#1461)

* Bump Kotlin dev version to 1.7.0-Beta

* Remove dup `Removed` in changelog

CHANGELOG.md

@@ -25,9 +25,7 @@ An AssertJ style API for testing KtLint rules ([#1444](https://github.com/pinter
 - Fix check of spacing in the receiver type of an anonymous function ([#1440](https://github.com/pinterest/ktlint/issues/1440))
 
 ### Changed
-* Set Kotlin development version to `1.6.21` and Kotlin version to `1.6.21`.
-
-### Removed
+* Set Kotlin development version to `1.7.0-Beta` and Kotlin version to `1.6.21`.
 
 ### Removed
 
@@ -82,8 +80,6 @@ This section is applicable when providing rules that depend on one or more value
 - Print the rule id always in the PlainReporter ([#1121](https://github.com/pinterest/ktlint/issues/1121))
 - All wrapping logic is moved from the `indent` rule to the new rule `wrapping` (as part of the `standard` ruleset). In case you currently have disabled the `indent` rule, you may want to reconsider whether this is still necessary or that you also want to disable the new `wrapping` rule to keep the status quo. Both rules can be run independent of each other. ([#835](https://github.com/pinterest/ktlint/issues/835))
 
-### Removed
-
 ## [0.44.0] - 2022-02-15
 
 Please welcome [paul-dingemans](https://github.com/paul-dingemans) as an official maintainer of ktlint!

buildSrc/build.gradle.kts

@@ -9,7 +9,7 @@ repositories {
 // Pass '-PkotlinDev' to command line to enable kotlin-in-development version
 val kotlinVersion = if (project.hasProperty("kotlinDev")) {
     logger.warn("Enabling kotlin dev version!")
-    "1.6.21"
+    "1.7.0-Beta"
 } else {
     "1.6.21"
 }