Use integer instead of int4

[robe]

integer is the canonical preferred way of specifying int4 in postgresql functions. In fact if you define a function as input int4 or output int4, PostgreSQL changes it to integer when you script the function.

To make it easier for our Perl script to determine a function is installed, we should standardize on integer instead of int4

[Regina Obe <lr@…>]

In 97de448/git:

Use integer instead of int4. References #5191 for PostGIS 3.3.0

[Regina Obe <lr@…>]

In 7ce341c/git:

Use integer instead of int4. References #5191 for PostGIS 3.3.0. For raster, geography, and legacy

[Regina Obe <lr@…>]

In 37d8bb47/git:

Use the more standard integer instead of int4. References #5191 for PostGIS 3.2.3

[Regina Obe <lr@…>]

In caf4a02/git:

Use the more standard integer instead of int4. References #5191 for PostGIS 3.1.7