sagemathgh-40038: Meson: build on recent Fedora
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

- Add devcontainer based on meson for fedora, and remove old outdated
ones
- Add CI for building with meson on fedora using system packages
- For this to work, rankwidth and ecl had to make optional since they
are currently not available
- The system package manager for fedora has been changed to use dnf
instead of yum
- And minor corrections to the package info

Currently encountering
- mesonbuild/meson#12970 when installing via
`meson install`
- mesonbuild/meson-python#598 when installing
via `pip`


### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [ ] The title is concise and informative.
- [ ] The description explains in detail what this PR is about.
- [ ] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#40038
Reported by: Tobias Diez
Reviewer(s): Dima Pasechnik, Tobias Diez, Vincent Macri

Author: Release Manager

.devcontainer/onCreate-meson.sh

@@ -0,0 +1,29 @@
+#! /bin/sh
+
+SYSTEM=$(build/bin/sage-guess-package-system)
+
+if [ "$SYSTEM" = "fedora" ]; then
+    # Need to use --setopt=tsflags="" to avoid errors with gphelp
+    dnf5 install -y pari-gp --setopt=tsflags=""
+
+    # Mitigate upstream packaging bug: https://bugzilla.redhat.com/show_bug.cgi?id=2332429
+    # by swapping the incorrectly installed OpenCL-ICD-Loader for the expected ocl-icd
+    dnf5 -y swap --repo='fedora' OpenCL-ICD-Loader ocl-icd
+fi
+
+eval $(build/bin/sage-print-system-package-command $SYSTEM "$@" update)
+eval $(build/bin/sage-print-system-package-command $SYSTEM --yes --ignore-missing install $(build/bin/sage-get-system-packages $SYSTEM $(build/bin/sage-package list :standard:)))
+
+# Disable build isolation following the advice of https://mesonbuild.com/meson-python/how-to-guides/editable-installs.html#build-dependencies
+# Install build dependencies manually as workaround for https://github.com/astral-sh/uv/issues/1516
+uv venv
+uv pip install \
+    meson-python \
+    "cypari2 >=2.2.1" \
+    "cysignals >=1.11.2, != 1.12.0" \
+    "cython >=3.0, != 3.0.3" \
+    "gmpy2 ~=2.1.b999" \
+    memory_allocator \
+    "numpy >=1.25" \
+    jinja2
+uv sync --frozen --inexact --no-build-isolation-package=sagemath