Release v0.5.2

Release a new version to have goreleaser publish a new formula.
This will resolve the following issue in the Homebrew formula.

```
Warning: Calling bottle :unneeded is deprecated! There is no replacement.
Please report this issue to the abhinav/tap tap (not Homebrew/brew or Homebrew/core):
  /usr/local/Homebrew/Library/Taps/abhinav/homebrew-tap/restack.rb:10
```

Author: abhinav

CHANGELOG.md

@@ -1,6 +1,12 @@
 Releases
 ========
 
+v0.5.2 (2021-10-28)
+-------------------
+
+- Homebrew formula: Conform to new format.
+
+
 v0.5.1 (2021-09-18)
 -------------------
 

README.md

@@ -21,7 +21,7 @@ For example, if you have `$HOME/bin` on your `$PATH`,
 
     OS=$(uname -s)
     ARCH=$(uname -m)
-    VERSION=0.5.1
+    VERSION=0.5.2
     URL="https://github.com/abhinav/restack/releases/download/v$VERSION/restack_${VERSION}_${OS}_${ARCH}.tar.gz"
     curl -L "$URL" | tar xzv -C ~/bin restack
 

version.go

@@ -5,4 +5,4 @@ package restack
 // Note that semantic versioning in this repository applies to the `restack`
 // executable, not to its library components. These APIs may break at any
 // time without warning.
-const Version = "0.5.1"
+const Version = "0.5.2"