website: add 2023.1.4 release notes

Author: dominikh

website/content/changes/2023.1.md

@@ -62,3 +62,14 @@ This release fixes the following bugs:
 - A crash when embedding type aliases of unnamed types ({{< issue "1361" >}})
 - A false positive in U1000, claiming that type aliases are unused ({{< issue "1365" >}})
 - A bug in the `binary` formatter that prevented correct merging behavior for some checks ({{< issue "1372" >}})
+
+## Staticcheck 2023.1.4 release notes {#2023.1.4}
+
+This release **adds support for Go 1.21** and fixes the following bugs:
+
+- Three crashes when encountering unnecessarily parenthesized statements ({{< issue "1393" >}}, {{< issue "1400" >}})
+- Unnecessarily high memory usage when analyzing composite literals such as `[]int{1<<31: 1}` ({{< issue "1393" >}})
+- A false positive in {{< check "S1011" >}} when appending to a dynamic left-hand side ({{< issue "1399" >}})
+- A crash involving generics ({{< issue "1410" >}})
+- A false positive in {{< check "SA9001" >}} involving control flow statements ({{< issue "488" >}})
+- A false positive in {{< check "ST1003" >}}, complaining about the names of fuzz functions ({{< issue "1420" >}}))