chore: add release manager script

[lukekarrys]

A new script that gets run manually to create an issue to track the current release. It also gets run at the end of the changelog script to update the issue with the newly known release version.

[npm-robot]

found 1 benchmarks with statistically significant performance improvements

• app-medium: clean

timing results

app-large	clean	lock-only	cache-only	cache-only peer-deps	modules-only	no-lock	no-cache	no-modules	no-clean	no-clean audit
npm@8	57.778 ±2.79	34.029 ±0.38	19.771 ±0.13	22.751 ±1.08	3.376 ±0.01	3.347 ±0.02	2.860 ±0.14	12.868 ±0.08	2.761 ±0.08	3.861 ±0.06
#4716	58.473 ±5.05	34.181 ±0.06	20.025 ±0.51	22.764 ±0.28	3.497 ±0.12	3.398 ±0.02	2.720 ±0.00	13.115 ±0.05	2.764 ±0.05	3.919 ±0.06

app-medium	clean	lock-only	cache-only	cache-only peer-deps	modules-only	no-lock	no-cache	no-modules	no-clean	no-clean audit
npm@8	45.394 ±0.67	26.654 ±0.32	14.858 ±0.11	16.031 ±0.28	3.118 ±0.01	3.104 ±0.04	2.906 ±0.02	9.716 ±0.13	2.585 ±0.01	3.524 ±0.03
#4716	40.411 ±1.02	26.858 ±0.19	15.112 ±0.52	16.156 ±0.20	3.168 ±0.07	3.102 ±0.03	2.755 ±0.03	9.746 ±0.02	2.581 ±0.02	3.483 ±0.14