Update 8.1.1 changelog with hotfixes
Version 8.1.1
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-:Date: May 31, 2022
+:Date: Jun 1, 2022
+* `@stsewd <https://github.com/stsewd>`__: Cancel build: get build from the current project (`#9287 <https://github.com/readthedocs/readthedocs.org/pull/9287>`__)
+* `@stsewd <https://github.com/stsewd>`__: Disable djstripe (`#9282 <https://github.com/readthedocs/readthedocs.org/pull/9282>`__)
+* `@stsewd <https://github.com/stsewd>`__: Python: increase 3.11 beta version (`#9284 <https://github.com/readthedocs/readthedocs.org/pull/9284>`__)
+* `@stsewd <https://github.com/stsewd>`__: Python: use 3.11.0b2 (`#9278 <https://github.com/readthedocs/readthedocs.org/pull/9278>`__)
* `@yarons <https://github.com/yarons>`__: Typo fix (`#9271 <https://github.com/readthedocs/readthedocs.org/pull/9271>`__)
* `@stsewd <https://github.com/stsewd>`__: Update json schema (`#9270 <https://github.com/readthedocs/readthedocs.org/pull/9270>`__)
* `@stsewd <https://github.com/stsewd>`__: Build tools: update versions (`#9268 <https://github.com/readthedocs/readthedocs.org/pull/9268>`__)
