release: 2025-04-01 library, aliases and readme updates

Added
- readme: list aliases with `clojure -X:deps aliases`
- aliases: `:src/java21` to include local java sources for java 21

Updated
- readme: simplify introduction, highlight common aliases
- dev: setup-clojure 12.3
- aliases: update library versions using `make outdated`

| :name                                | :current                                 | :latest                                  |
| ------------------------------------ |----------------------------------------- | ---------------------------------------- |
| borkdude/carve                       | e02b65f9de679450176a3fa26c89ffd5600d7eb8 | fdd1d0bc432f63db69e3a72167ef5e46f10dfba7 |
| cider/cider-nrepl                    | 0.52.1                                   | 0.53.2                                   |
| com.github.flow-storm/clojure        | 1.12.0-4                                 | 1.12.0-9                                 |
| com.github.flow-storm/flow-storm-dbg | 4.2.0                                    | 4.3.0                                    |
| com.github.liquidz/antq              | 2.11.1269                                | 2.11.1276                                |
| com.github.seancorfield/next.jdbc    | 1.3.994                                  | 1.3.1002                                 |
| io.github.clj-holmes/clj-watson      | v6.0.0                                   | v6.0.1                                   |

Author: practicalli-johnny

CHANGELOG.org

@@ -2,6 +2,7 @@
 
 * Unreleased
 
+* 2025-04-02
 ** Added
    - readme: list aliases with `clojure -X:deps aliases`
    - aliases: `:src/java21` to include local java sources for java 21