Add Schwarz Digits to ADOPTERS.md #4148

Job	Run time
Skip Duplicate Jobs Pre Job	6s
Lint Checks (black, flake8, etc.) - Python 3.6	2m 16s
Pack Tests - Python 3.6	1m 58s
Compile (pip deps, pylint, etc.) - Python 3.6	3m 47s
Self-check on Python 3.8 - Python 3.8	7m 12s
Integration Tests (chunk 1) - Python 3.6	3m 53s
Lint Checks (black, flake8, etc.) - Python 3.8	1m 58s
Integration Tests (chunk 2) - Python 3.6	4m 54s
Compile (pip deps, pylint, etc.) - Python 3.8	3m 21s
Pack Tests - Python 3.8	1m 24s
Unit Tests (chunk 1) - Python 3.6	6m 11s
Lint Checks (black, flake8, etc.) - Python 3.9	2m 2s
Integration Tests (chunk 1) - Python 3.8	3m 49s
Compile (pip deps, pylint, etc.) - Python 3.9	3m 17s
Integration Tests (chunk 2) - Python 3.8	4m 49s
Unit Tests (chunk 2) - Python 3.6	4m 27s
Pack Tests - Python 3.9	1m 13s
Unit Tests (chunk 1) - Python 3.8	5m 43s
Integration Tests (chunk 1) - Python 3.9	3m 37s
Unit Tests (chunk 2) - Python 3.8	4m 14s
Integration Tests (chunk 2) - Python 3.9	4m 35s
Unit Tests (chunk 1) - Python 3.9	5m 54s
Unit Tests (chunk 2) - Python 3.9	4m 21s
Slack notification for failed master builds	3s
	1h 25m 4s

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