Fix various issues in staged changelog files

.changes/next-release/bugfix-56887e7be8e96d3b96972b0367992984eb7f71e4.json

@@ -1,6 +1,6 @@
 {
   "type": "bugfix",
-  "description": "Fix base64 blobs in event stream test params.",
+  "description": "Fixed event stream test params encoding blobs in b64.",
   "pull_requests": [
     "[#3121](https://github.com/smithy-lang/smithy/pull/3121)"
   ]

.changes/next-release/bugfix-fab9cf64f935850c592eca38cab212cba6579149.json

@@ -1,6 +1,6 @@
 {
   "type": "bugfix",
-  "description": "Fix Windows user PATH corruption in install.bat caused by setx silently truncating values over 1024 characters",
+  "description": "Fixed a Windows user PATH corruption in install.bat caused by setx silently truncating values over 1024 characters",
   "pull_requests": [
     "[#3117](https://github.com/smithy-lang/smithy/pull/3117)"
   ]

.changes/next-release/documentation-ad9fca5e56b93e78e4780644c8e4d5c9d07f8939.json

@@ -1,6 +1,6 @@
 {
   "type": "documentation",
-  "description": "Fix stale and mismatched AWS API Gateway reference link targets",
+  "description": "Fixed stale and mismatched AWS API Gateway reference link targets",
   "pull_requests": [
     "[#3077](https://github.com/smithy-lang/smithy/pull/3077)"
   ]

.changes/next-release/other-9bd6d84413f9cd31f5b4b7f98c2e69f3dc9db3b4.json → .changes/next-release/feature-9bd6d84413f9cd31f5b4b7f98c2e69f3dc9db3b4.json

@@ -1,5 +1,5 @@
 {
-  "type": "other",
+  "type": "feature",
   "description": "Added a new protocol test for query operations with no output that can include `ResponseMetadata`. No assertions are done but protocol test runners should be able to handle the metadata without choking.",
   "pull_requests": [
     "[#3106](https://github.com/smithy-lang/smithy/pull/3106)"