vulnbugtesting renamed thunderbird-reviewers from thunderbuild to thunderbird-reviewers.

vulnbugtesting changed hashtags for thunderbird-reviewers, added #thunderbuild; removed #testing-policy_s_’”_._7_7_7_7_7_7_7_7.

vulnbugtesting renamed thunderbird-reviewers from testing-policy'"`><><s>${{<%[%’”}}%\.{7*7}${7*7}{{7*7}}${{7*7}} to thunderbuild.

Herald added a reviewer for D4045: no bug - bump test to test prod-Bug 1981900: vulnbugtesting5.