Upgrade Texer to Ubuntu 22.04 with TeXLive 2022 (#24)

Author: pavel-kirienko

README.md

@@ -48,6 +48,7 @@ is based on Ubuntu and provides the necessary compilers and utilities to author
 | tag      | Python | Tex Live | git | Other Utilities |
 |----------|--------|----------|-----|-----------------|
 | [te20.4.1](https://github.com/OpenCyphal/docker_toolchains/pkgs/container/texer) | 3.11 | 2019 | 2.25.1 | <ul><li>python pygments</li><li>lyx</li><li>inkscape</li></ul> |
+| [te22.4.1](https://github.com/OpenCyphal/docker_toolchains/pkgs/container/texer) | 3.11 | 2022 | 2.34.1 | <ul><li>python pygments</li><li>lyx</li><li>inkscape</li></ul> |
 
 You can use this in your workflow yaml like this:
 
@@ -86,4 +87,4 @@ jobs:
 
 Note that, if you create a new container in this project, the prefix cannot end with 'v'. So "tu22.4.1" is okay but
 "tv28.3.1" won't work because the release workflows elide "v" (as in version) by default and the container will become
-"t28.3.1" in packages but "tv.28.3.1" as a git tag.
+"t28.3.1" in packages but "tv.28.3.1" as a git tag.

texer/Dockerfile

@@ -1,15 +1,14 @@
 #
-# Builds the toolshed/ubuntu-20.04 toolchain container.
+# Builds the toolshed/ubuntu-22.04 toolchain container.
 #
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 LABEL org.opencontainers.image.description "Provides a consistent build and test environment for authoring, continuous-integration, and publication of OpenCyphal LaTeX documents."
 
 VOLUME /repo
 
 WORKDIR /repo
 
-
 ENV DEBIAN_FRONTEND=noninteractive
 
 ENV LANG=en_US.UTF-8
@@ -46,7 +45,7 @@ RUN python3 -m pip install pygments
 
 # install Powershell
 RUN apt-get -y install --no-install-recommends wget apt-transport-https
-RUN wget -q https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb && \
+RUN wget -q https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb && \
   dpkg -i packages-microsoft-prod.deb
 RUN apt-get update && \
   apt-get install -y powershell

texer/README.md

@@ -1,4 +1,4 @@
-# texer (te): The OpenCyphal Toolchain Container for Python
+# texer (te): The OpenCyphal Toolchain Container for LaTeX
 
 The `opencyphal/texer` container provides a consistent build and test environment for authoring, continuous-integration,
 and publication of OpenCyphal [LaTeX](https://www.latex-project.org/) documents.
@@ -47,4 +47,4 @@ To login to an interactive session do:
 
 ```bash
 docker run --rm -it -v ${PWD}:/repo ghcr.io/opencyphal/texer:te20.4.x
-```
+```