docs: fix the badges issue in README

[caitaozhan]

Fix the "Rate limited by upstream service" issue in the README badges

[github-code-quality]

Code Coverage Overview

Languages: Python

Python / code-coverage/pytest

The overall coverage in the fix/readme branch remains at 83%, unchanged from the master branch.

Show a code coverage summary of the most impacted files.

File	master 021ef42	fix/readme b5690a0	+/-
sequence/entang...n/bbpssw_bds.py	48%	48%	0%
sequence/entang...swapping_bds.py	19%	19%	0%
sequence/entang...gle_heralded.py	30%	30%	0%
sequence/utils/.../event_types.py	0%	81%	+81%
sequence/utils/...ics/registry.py	0%	87%	+87%
sequence/utils/...ics/__init__.py	0%	97%	+97%
sequence/utils/...metric_types.py	0%	98%	+98%
tests/utils/test_metrics.py	0%	100%	+100%
sequence/utils/...rics/storage.py	0%	100%	+100%
sequence/utils/...ics/builtins.py	0%	100%	+100%

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_{Updated July 10, 2026 20:21 UTC
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