Merge branch 'fix/mumps-testing-env' into 'master'

use correct (sequential) Mumps libraries in testing image

See merge request kwant/kwant!354

docker/kwant-latest.yml

@@ -11,7 +11,8 @@ dependencies:
     - qsymm
     - plotly
     # Linear algebra libraraies
-    - mumps
+    - mumps-seq
+    - mumps-include
     - blas #=1.1 openblas
     - openblas #=0.2.20
     # Build toolchain

docker/kwant-stable.yml

@@ -11,7 +11,8 @@ dependencies:
     - qsymm=1.2.6
     - plotly=2.2.2
     # Linear algebra libraraies
-    - mumps
+    - mumps-seq
+    - mumps-include
     - blas #=1.1 openblas
     - openblas #=0.2.20
     # Build toolchain