toml-f version incompatibility (#102)

I noticed that there is an incompatibility in the toml-f version defined
here in mctc-lib (toml-f v0.4.2) and in the jonquil (toml-f head)
dependency. This leads to the v0.4.2 released version of toml-f being
used, which brings back already solved issues on MacOS (particularly
[tomlf/#152](toml-f/toml-f#152)). There are a
few examples when testing
[multicharge](https://github.com/grimme-lab/multicharge/actions/runs/17825142478/job/50676491358),
[xtb with all
test](https://github.com/thfroitzheim/xtb/actions/runs/19199479482/job/54885239568)
and
[simple-dftd3](https://github.com/thfroitzheim/simple-dftd3/actions/runs/19208308381/job/54906760205)
(the latter has the same problem of overwriting the jonquil toml-f
version).

Before we set here the toml-f dependency always to `head`, I think a new
toml-f and jonquil release with fixed versions would be more helpful
(see [toml-f/162](toml-f/toml-f#162), therefore
I made this only a draft).

---------

Co-authored-by: Sebastian Ehlert <28669218+awvwgk@users.noreply.github.com>

Author: thfroitzheim

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
         build: [meson, cmake]
         build-type: [debug]
         compiler: [gnu]
-        version: [12]
+        version: [14]
 
         include:
         - os: ubuntu-latest

subprojects/toml-f.wrap

@@ -1,4 +1,4 @@
 [wrap-git]
 directory = toml-f
 url = https://github.com/toml-f/toml-f
-revision = v0.4.2
+revision = v0.4.3