update dependency versions

Author: semuadmin

README.md

@@ -38,9 +38,9 @@ Unicore "NebulasIV" GNSS receivers are configured using TTY commands (ASCII text
 
 Sphinx API Documentation in HTML format is available at [https://www.semuconsulting.com/pyunigps/](https://www.semuconsulting.com/pyunigps/).
 
-Contributions welcome - please refer to [CONTRIBUTING.MD](https://github.com/semuconsulting/pyunigps/blob/master/CONTRIBUTING.md).
+Contributions welcome - please refer to [CONTRIBUTING.MD](https://github.com/semuconsulting/pyunigps/blob/main/CONTRIBUTING.md).
 
-[Bug reports](https://github.com/semuconsulting/pyunigps/blob/master/.github/ISSUE_TEMPLATE/bug_report.md) and [Feature requests](https://github.com/semuconsulting/pyunigps/blob/master/.github/ISSUE_TEMPLATE/feature_request.md) - please use the templates provided. For general queries and advice, post a message to one of the [pyunigps Discussions](https://github.com/semuconsulting/pyunigps/discussions) channels.
+[Bug reports](https://github.com/semuconsulting/pyunigps/blob/main/.github/ISSUE_TEMPLATE/bug_report.md) and [Feature requests](https://github.com/semuconsulting/pyunigps/blob/main/.github/ISSUE_TEMPLATE/feature_request.md) - please use the templates provided. For general queries and advice, post a message to one of the [pyunigps Discussions](https://github.com/semuconsulting/pyunigps/discussions) channels.
 
 ![No Copilot](https://github.com/semuconsulting/PyGPSClient/blob/master/images/nocopilot100.png?raw=true)
 

pyproject.toml

@@ -32,7 +32,7 @@ classifiers = [
     "Topic :: Scientific/Engineering :: GIS",
 ]
 
-dependencies = ["pynmeagps >= 1.1.2", "pyrtcm>=1.1.11"]
+dependencies = ["pynmeagps >= 1.1.2", "pyrtcm>=1.1.12"]
 
 [project.urls]
 homepage = "https://github.com/semuconsulting/pyunigps"