v6.2.0 release

chore: v6.0.0 (#4040)

changes since v5.33.0


**monorepo**
* Vega is now ESM only! (via #4018) (Thanks @domoritz!)
* (fix) Correct browser export syntax (via #4039) (Thanks @domoritz!)
* (fix) Fix source maps (via #4041) (Thanks @domoritz!)
* (fix) handle string datetime in interpreter (via #4042) (Thanks
@domoritz!)

**vega-typings**
* Expose resetSVGDefIds (via #4012) (Thanks @domoritz!)

**docs**
* Update deps and datasets (via #4036) (Thanks @domoritz!)

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Signed-off-by: Lukas Hermann <[email protected]>

chore: v5.33.0 (#4027)

Changes since v5.32.0

**docs**
* Add release number to docs for base64 encode/decode (atob, btoa) (via
#4023). (Thanks @hydrosquall!)
* Fix docs for exponential regression (via #4024). (Thanks
@elliot-at-looker!)

---------

Signed-off-by: Lukas Hermann <[email protected]>

chore: update vega-cli to v5.32.0 (#4015)

Signed-off-by: Lukas Hermann <[email protected]>

chore: bump cli (#4004)

Signed-off-by: Lukas Hermann <[email protected]>

chore: v5.30.0 (#3934)

Changes since v5.29.0

**vega-functions**
- make default vega format null as "null" (via #3926). (Thanks @kanitw &
@domoritz )!

**docs**
- Add 4 new examples (via #3851). (Thanks @avatorl & @domoritz!)

**monorepo**
- Deploy editor preview (via #3925, #3931). (Thanks @hydrosquall!)
- Bump all `vega-*` deps in topological order to eliminate version
mismatches within the monorepo (via #3932). (Thanks @lsh!)

Signed-off-by: Lukas Hermann <[email protected]>