Bump pyriemann from 0.6 to 0.8

Bumps [pyriemann](https://github.com/pyRiemann/pyRiemann) from 0.6 to 0.8.
- [Release notes](https://github.com/pyRiemann/pyRiemann/releases)
- [Changelog](https://github.com/pyRiemann/pyRiemann/blob/master/doc/whatsnew.rst)
- [Commits](pyRiemann/pyRiemann@v0.6...v0.8)

---
updated-dependencies:
- dependency-name: pyriemann
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

doc/requirements.txt

@@ -20,7 +20,7 @@ qiskit-optimization==0.6.1
 qiskit-aer==0.15.1
 scipy==1.13.1
 moabb==1.1.1
-pyriemann==0.6
+pyriemann==0.8
 docplex>=2.21.207
 firebase_admin==6.6.0
 qiskit-symb==0.2.0

setup.py

@@ -35,7 +35,7 @@
       install_requires=[
                         'numpy<2.2',
                         'cython',
-                        'pyriemann==0.6',
+                        'pyriemann==0.8',
                         'qiskit==1.*',
                         'qiskit_algorithms==0.3.1',
                         'qiskit_machine_learning==0.7.2',