[MC-219533] Wandering trader drinking subtitles are improperly capitalized

The Bug:

Wandering trader drinking subtitles are improperly capitalized.

The release of 22w15a changed the majority of advancement strings to capitalize generic nouns within them (nouns that don't explicitly refer to the name of an item). Take the "advancements.story.mine_stone.description" string for example. This string was previously "Mine stone with your new pickaxe" and was changed to "Mine Stone with your new Pickaxe" in 22w15a. So why is this relevant? This change in capitalization suggests that generic nouns should be capitalized, therefore leading me to believe that wandering trader drinking subtitles are improperly capitalized.

Affected Strings:

Before reading the table, please note the following:

Words colored in GREEN are correct.
Words colored in RED are incorrect.

Translation Key	Current String	Expected String	String URL on Crowdin
subtitles.entity.wandering_trader.drink_potion	Wandering Trader drinks potion	Wandering Trader drinks Potion	https://crowdin.com/translate/minecraft/9885/enus-engb#5268871
subtitles.entity.wandering_trader.drink_milk	Wandering Trader drinks milk	Wandering Trader drinks Milk	https://crowdin.com/translate/minecraft/9885/enus-engb#5268869

Steps to Reproduce:

Display any of the affected strings as listed above by using the command provided below and replacing "XYZ" with the string's translation key.
```
/tellraw @s {"translate":"XYZ"}
```
Look closely at the affected words within the string.
Take note as to whether or not wandering trader drinking subtitles are improperly capitalized.

Observed Behavior:

Wandering trader drinking subtitles are improperly capitalized.

Expected Behavior:

Wandering trader drinking subtitles would be properly capitalized.