chore(ci): disable color for rstcheck

Disable the color output for rstcheck so the summary messages are
readable in the event of a traceback.

Signed-off-by: Randolph Sapp <[email protected]>

Author: StaticRocket

.github/workflows/rstcheck.yml

@@ -32,6 +32,9 @@ jobs:
 
       - name: Run rstcheck
         run: |
+          # Disable color output
+          export NO_COLOR=true
+
           # Run the test
           bin/delta.sh -a master -b pr -- rstcheck -r source/