allow latest pkg:pub_semver (dart-lang/pubspec_parse#64)

pkgs/pubspec_parse/CHANGELOG.md

diff --git a/pkgs/pubspec_parse/CHANGELOG.md b/pkgs/pubspec_parse/CHANGELOG.md
index 26b1d31..a07e488 100644
--- a/pkgs/pubspec_parse/CHANGELOG.md
+++ b/pkgs/pubspec_parse/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.1.8
+
+- Allow the latest `package:pub_semver`.
+
 ## 0.1.7
 
 - Allow `package:yaml` `v3.x`.

pkgs/pubspec_parse/pubspec.yaml

diff --git a/pkgs/pubspec_parse/pubspec.yaml b/pkgs/pubspec_parse/pubspec.yaml
index 5cda976..dee30ec 100644
--- a/pkgs/pubspec_parse/pubspec.yaml
+++ b/pkgs/pubspec_parse/pubspec.yaml
@@ -2,7 +2,7 @@
 description: >-
   Simple package for parsing pubspec.yaml files with a type-safe API and rich
   error reporting.
-version: 0.1.7
+version: 0.1.8
 repository: https://github.com/dart-lang/pubspec_parse
 
 environment:
@@ -12,7 +12,7 @@
   checked_yaml: ^1.0.0
   # Verified that no new features since 1.0.0 are used - be careful!
   json_annotation: '>=1.0.0 <5.0.0'
-  pub_semver: ^1.3.2
+  pub_semver: '>=1.3.2 <3.0.0'
   yaml: '>=2.1.12 <4.0.0'
 
 dev_dependencies: