GODRIVER-3592 Complete Go 1.25 CI update

- Update README.md to require Go 1.25 for test suite
- Update CONTRIBUTING.md to reference Go 1.25
- Update go.work to use Go 1.25

Author: prestonvasquez

README.md

@@ -23,7 +23,7 @@ The MongoDB Go driver follows [semantic versioning](https://semver.org/) for its
 ## Requirements
 
 - Go 1.19 or higher. We aim to support the latest versions of Go.
-- Go 1.23 or higher is required to run the driver test suite.
+- Go 1.25 or higher is required to run the driver test suite.
 - MongoDB 4.2 and higher.
 
 ## Installation

docs/CONTRIBUTING.md

@@ -6,7 +6,7 @@ We are building this software together and strongly encourage contributions from
 
 ## Requirements
 
-Go 1.23 or higher is required to run the driver test suite.  We use [task](https://taskfile.dev/) as our task runner.
+Go 1.25 or higher is required to run the driver test suite.  We use [task](https://taskfile.dev/) as our task runner.
 
 ## Bug Fixes and New Features
 

go.work

@@ -1,4 +1,4 @@
-go 1.23.0
+go 1.25.0
 
 use (
 	.