vbump to 0.9.7, prep for release [skip vbump]

[shajoezhu]

close #1281

[github-actions]

Unit Tests Summary

    1 files     84 suites   1m 15s ⏱️
  876 tests   867 ✅   9 💤 0 ❌
1 881 runs  1 184 ✅ 697 💤 0 ❌

Results for commit bbbadfc.

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Performance Difference

Test Suite	$Status$	Time on main	$±Time$	$±Tests$	$±Skipped$	$±Failures$	$±Errors$
analyze_vars_in_cols	💔	$2.47$	$+3.29$	$+17$	$-7$	$0$	$0$
count_occurrences	💔	$0.75$	$+1.64$	$+10$	$-8$	$0$	$0$
count_occurrences_by_grade	💔	$1.80$	$+1.12$	$+16$	$-17$	$0$	$0$
summarize_coxreg	💔	$3.72$	$+1.63$	$+13$	$-13$	$0$	$0$
summarize_num_patients	💔	$1.10$	$+1.28$	$+18$	$-16$	$0$	$0$

Additional test case details

Test Suite	$Status$	Time on main	$±Time$	Test Case
analyze_vars_in_cols	💔	$0.50$	$+1.51$	summarize_works_with_nested_analyze

Results for commit 0e8d706

♻️ This comment has been updated with latest results.

[edelarua]

Lgtm!