[TEP-0100] Update deprecations table

With #4739 merged and the v0.35.0 release coming up, it's time to update the deprecations table.
The plan is to switch the default value for `embedded-status` to `minimal` 9 months after the
release of v0.35.0, and then remove the `full` and `both` values in the following release. I
opted to use the date for changing the default as the "earliest date of removal" here.

Signed-off-by: Andrew Bayer <andrew.bayer@gmail.com>

Author: abayer

docs/deprecations.md

@@ -24,3 +24,4 @@ being deprecated.
 | [`Conditions` CRD is deprecated and will be removed. Use `when` expressions instead.](https://github.com/tektoncd/community/blob/main/teps/0007-conditions-beta.md) | [v0.16.0](https://github.com/tektoncd/pipeline/releases/tag/v0.16.0) | Alpha                                                                                                  | Nov 02 2020                         |
 | [`PipelineRunCancelled` is deprecated and will be removed](https://github.com/tektoncd/pipeline/issues/4611)                                                        | [v0.25.0](https://github.com/tektoncd/pipeline/releases/tag/v0.25.0) | Beta                                                                                                   | March 15 2022                       |
 | [`PipelineResources` are deprecated.](https://github.com/tektoncd/community/blob/main/teps/0074-deprecate-pipelineresources.md)                                     | [v0.30.0](https://github.com/tektoncd/pipeline/releases/tag/v0.30.0) | Alpha                                                                                                  | Dec 20 2021                         |
+| [The `PipelineRun.Status.TaskRuns` and `PipelineRun.Status.Runs` fields are deprecated and will be removed.](https://github.com/tektoncd/community/blob/main/teps/0100-embedded-taskruns-and-runs-status-in-pipelineruns.md) | v0.35.0 (to be released)                                             | Beta                                                                                                   | Jan 25, 2023                        |