Bumped symbiflow-yosys version in docs/environment.yml and in environment.yml

Signed-off-by: Maciej Kurc <mkurc@antmicro.com>

conf/environment.yml

diff --git a/conf/environment.yml b/conf/environment.yml
index fcdf0c1..ee18da9 100644
--- a/conf/environment.yml
+++ b/conf/environment.yml
@@ -2,7 +2,7 @@
 channels:
   - symbiflow
 dependencies:
-  - symbiflow-yosys
+  - symbiflow-yosys=0.8_6021_gd8b2d1a2=20200923_144930*
   - pip:
     - tox
     - flake8

docs/environment.yml

diff --git a/docs/environment.yml b/docs/environment.yml
index a30698b..9bf7d2e 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -1,16 +1,15 @@
 name: v2x-docs
 channels:
-- SymbiFlow
+- symbiflow
 - conda-forge
-- defaults
 dependencies:
 - python=3.7
 - pip
 - pycairo
 - pango
 - pygobject
-- yosys
-- netlistsvg
+- symbiflow-yosys=0.8_6021_gd8b2d1a2=20200923_144930*
+- netlistsvg=0.0_0231_g67115bc=20200921_133616
 # ReadTheDocs dependencies (installed here but also by the docs build CI)
 - mock
 - pillow