Increased latest version to 5.1.2b0 [skip ci]

README.md

-[![latest-docs](https://img.shields.io/badge/docs-v5.1.1-orange.svg)](https://www.idiap.ch/software/bob/docs/bob/bob.io.base/v5.1.1/sphinx/index.html)
-[![build](https://gitlab.idiap.ch/bob/bob.io.base/badges/v5.1.1/pipeline.svg)](https://gitlab.idiap.ch/bob/bob.io.base/commits/v5.1.1)
-[![coverage](https://gitlab.idiap.ch/bob/bob.io.base/badges/v5.1.1/coverage.svg)](https://www.idiap.ch/software/bob/docs/bob/bob.io.base/v5.1.1/coverage/index.html)
+[![latest-docs](https://img.shields.io/badge/docs-latest-orange.svg)](https://www.idiap.ch/software/bob/docs/bob/bob.io.base/master/sphinx/index.html)
+[![build](https://gitlab.idiap.ch/bob/bob.io.base/badges/master/pipeline.svg)](https://gitlab.idiap.ch/bob/bob.io.base/commits/master)
+[![coverage](https://gitlab.idiap.ch/bob/bob.io.base/badges/master/coverage.svg)](https://www.idiap.ch/software/bob/docs/bob/bob.io.base/master/coverage/index.html)
 [![repository](https://img.shields.io/badge/gitlab-project-0000c0.svg)](https://gitlab.idiap.ch/bob/bob.io.base)
 
 # bob.io.base

pyproject.toml

@@ -4,7 +4,7 @@
 
 [project]
 name = "bob.io.base"
-version = "5.1.1"
+version = "5.1.2b0"
 requires-python = ">=3.9"
 description = "Basic IO for Bob"
 dynamic = ["readme"]
@@ -29,7 +29,7 @@ dependencies = [
 ]
 
 [project.urls]
-documentation = "https://www.idiap.ch/software/bob/docs/bob/bob.io.base/v5.1.1/sphinx"
+documentation = "https://www.idiap.ch/software/bob/docs/bob/bob.io.base/master/sphinx"
 homepage = "https://pypi.org/project/bob.io.base"
 repository = "https://gitlab.idiap.ch/bob/bob.io.base"
 changelog = "https://gitlab.idiap.ch/bob/bob.io.base/-/releases"