Update version to 0.16.0 (#2123)

Welcome to pgrx v0.16.0.

This release contains support for Postgres 18beta2 and has some breaking
changes in that support for pgrx' "hooks" implementation, which has been
deprecated for over a year, has finally been removed.

Additionally, due to unsoundness issues, direct support for using
`heapless` in shared memory has been removed. Users can still do this
themselves, which requires them to assert they're taking responsibility
of possible unsoundness issues.

As always, first install the latest `cargo-pgrx` with:

```shell
$ cargo install cargo-pgrx --version 0.16.0 --locked
```

Then you're free to run `cargo pgrx upgrade` in the root of all your
extension crates.

To pickup pg18beta2 support you'll also want to run `cargo pgrx init` so
that it can be downloaded and compiled.

# What's Changed

## Breaking Changes

* delete `pgrx::hooks` by @usamoi in
#2120
* improve shmem api by @usamoi in
#2107


## New Features

* update to Postgres v18beta2 by @usamoi in
#2111
* feat: `BackgroundWorker::connect_worker_to_spi_by_oid` by @if0ne in
#2116
* teach `#[pg_cast]` to support 3-argument CAST functions by
@eeeebbbbrrrr in #2119
* teach `#[pg_extern]` about a SUPPORT function by @eeeebbbbrrrr in
#2121

## Bug Fixes

* fix name_data_to_str by @usamoi in
#2108
* add pg_guard_ffi_boundary to direct_pg_extern_function_call_as_datum
by @usamoi in #2118

## `cargo-pgrx` Improvements

* add `--valgrind` to more cargo-pgrx subcommands by @usamoi in
#2109
* `cargo pgrx regress --resetdb` will run `setup.sql` by @ccleve in
#2113


## Code Cleanup

* filter out unrecognized attributes in PostgresGucEnum by @usamoi in
#2102
* Elide needless lifetime by @nyurik in
#2097

## Package/Build System Cleanup

* chore: include pgrx-version-updater into workspace by @nyurik in
#2101
* chore: consolidate package settings in workspace by @nyurik in
#2100
* chore: prepare for 2024 edition by @nyurik in
#2103

# Thanks!  

Thanks to all contributors -- y'alls work helps keep pgrx moving
forward.

**Full Changelog**:
v0.15.0...v0.16.0

Author: eeeebbbbrrrr

Cargo.lock

@@ -59,17 +59,17 @@ repository = "https://github.com/pgcentralfoundation/pgrx/"
 homepage = "https://github.com/pgcentralfoundation/pgrx/"
 # TODO: all crates should use this version rather than copy it
 #   See https://github.com/pgcentralfoundation/pgrx/pull/2100 comments
-version = "0.15.0"
+version = "0.16.0"
 
 [workspace.metadata.local-install]
 cargo-pgrx = { path = "cargo-pgrx" }
 
 [workspace.dependencies]
-pgrx-macros = { path = "./pgrx-macros", version = "=0.15.0" }
-pgrx-pg-sys = { path = "./pgrx-pg-sys", version = "=0.15.0" }
-pgrx-sql-entity-graph = { path = "./pgrx-sql-entity-graph", version = "=0.15.0" }
-pgrx-pg-config = { path = "./pgrx-pg-config", version = "=0.15.0" }
-pgrx-bindgen = { path = "./pgrx-bindgen", version = "=0.15.0" }
+pgrx-macros = { path = "./pgrx-macros", version = "=0.16.0" }
+pgrx-pg-sys = { path = "./pgrx-pg-sys", version = "=0.16.0" }
+pgrx-sql-entity-graph = { path = "./pgrx-sql-entity-graph", version = "=0.16.0" }
+pgrx-pg-config = { path = "./pgrx-pg-config", version = "=0.16.0" }
+pgrx-bindgen = { path = "./pgrx-bindgen", version = "=0.16.0" }
 
 cargo_metadata = "0.18.0"
 cargo-edit = "=0.13.2" # format-preserving edits to cargo.toml

Cargo.toml

@@ -10,7 +10,7 @@
 
 [package]
 name = "cargo-pgrx"
-version = "0.15.0"
+version = "0.16.0"
 authors.workspace = true
 license.workspace = true
 description = "Cargo subcommand for 'pgrx' to make Postgres extension development easy"

cargo-pgrx/Cargo.toml

@@ -21,10 +21,10 @@ pg18 = ["pgrx/pg18", "pgrx-tests/pg18" ]
 pg_test = []
 
 [dependencies]
-pgrx = "=0.15.0"
+pgrx = "=0.16.0"
 
 [dev-dependencies]
-pgrx-tests = "=0.15.0"
+pgrx-tests = "=0.16.0"
 
 [profile.dev]
 panic = "unwind"

cargo-pgrx/src/templates/cargo_toml

@@ -1,7 +1,7 @@
 [package]
 name = "pgrx-bindgen"
 description = "additional bindgen support for pgrx"
-version = "0.15.0"
+version = "0.16.0"
 edition.workspace = true
 license.workspace = true
 homepage = "https://github.com/pgcentralfoundation/pgrx"

pgrx-bindgen/Cargo.toml

@@ -10,7 +10,7 @@
 
 [package]
 name = "pgrx-macros"
-version = "0.15.0"
+version = "0.16.0"
 authors.workspace = true
 license.workspace = true
 description = "Proc Macros for 'pgrx'"

pgrx-macros/Cargo.toml

@@ -10,7 +10,7 @@
 
 [package]
 name = "pgrx-pg-config"
-version = "0.15.0"
+version = "0.16.0"
 authors.workspace = true
 license.workspace = true
 description = "A Postgres pg_config wrapper for 'pgrx'"

pgrx-pg-config/Cargo.toml

@@ -10,7 +10,7 @@
 
 [package]
 name = "pgrx-pg-sys"
-version = "0.15.0"
+version = "0.16.0"
 authors.workspace = true
 license.workspace = true
 description = "Generated Rust bindings for Postgres internals, for use with 'pgrx'"