Remove support for Postgres / PostGIS versions that have reached their EOL

[mtrezza]

See #9531

[parse-github-assistant]

Thanks for opening this issue!

[dblythy]

AFAIK all postgres versions are supported (version 13+ is supported until Nov 2025)

Version	PostGIS Version	End-of-Life	Parse Server Support	Compatible
Postgres 13	3.1, 3.2, 3.3, 3.4, 3.5	November 2025	<= 6.x (2023)	✅ Yes
Postgres 14	3.5	November 2026	<= 7.x (2024)	✅ Yes
Postgres 15	3.5	November 2027	<= 8.x (2025)	✅ Yes
Postgres 16	3.5	November 2028	<= 9.x (2026)	✅ Yes
Postgres 17	3.5	November 2029	<= 9.x (2026)	✅ Yes

[mtrezza]

We are ending support 2 years before the EOL date, hence the column "Parse Server Support". Postgres 13 and 14 are unsupported from PS7 and PS8 respective onwards. We didn't remove support in PS7 for Postgres 13, but for PS8 we'll only support Postgres 15+.

Ref:

Due to the extensive PostgreSQL support duration of 5 years, Parse Server drops support about 2 years before the official end-of-life date.

[parseplatformorg]

🎉 This change has been released in version 8.0.0-alpha.6