chore: bump version to 1.5.0

We have at least a new feature (`--switch-threshold`) so this release
can't be considered a bugfix.

META.json

@@ -2,7 +2,7 @@
    "name": "pg_repack",
    "abstract": "PostgreSQL module for data reorganization",
    "description": "Reorganize tables in PostgreSQL databases with minimal locks",
-   "version": "1.4.9",
+   "version": "1.5.0",
    "maintainer": [
        "Beena Emerson <memissemerson@gmail.com>",
        "Josh Kupershmidt <schmiddy@gmail.com>",
@@ -17,7 +17,7 @@
    "provides": {
       "pg_repack": {
          "file": "lib/pg_repack.sql",
-         "version": "1.4.8",
+         "version": "1.5.0",
          "abstract": "Reorganize tables in PostgreSQL databases with minimal locks"
       }
    },

doc/pg_repack.rst

@@ -473,7 +473,7 @@ Creating indexes concurrently comes with a few caveats, please see `the document
 Releases
 --------
 
-* pg_repack 1.4.9 (unreleased)
+* pg_repack 1.5.0
 
   * Added support for PostgreSQL 16
   * Fix possible SQL injection (issue #368)