manifests: MySQL image do not pin patch version

[tarilabs]

instead of pinning to 8.3.0,
consider using 8.3

for more info: #1137 (comment)

[juniemariam]

Hi,
Could I please take this up. I am new to open source contributions. Any additional info would be great!
Thanks

[tarilabs]

Hi, we just need to refer to 8.3 in manifest rather than 8.3.0 per Platform suggestion linked
feel free to assign this to you! thanks

[juniemariam]

/assign @juniemariam

[juliusvonkohout]

By the way is there a reason for 8.3 instead of 8.4 which kfp uses?

[tarilabs]

Nothing particular. We can see to bump the update, but team is more focused on the MLMD removal atm.