[Web] add oauth2-keycloak lib

data/web/inc/lib/vendor/psr/http-client/CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file, in reverse chronological order by release.
+
+## 1.0.1
+
+Allow installation with PHP 8. No code changes.
+
+## 1.0.0
+
+First stable release. No changes since 0.3.0.
+
+## 0.3.0
+
+Added Interface suffix on exceptions
+ 
+## 0.2.0 
+
+All exceptions are in `Psr\Http\Client` namespace
+
+## 0.1.0
+
+First release