bump clojure 1.12 to alpha 3

README.md

@@ -98,7 +98,7 @@ There are aliases to pull in and start various REPL-related tools:
 
 There are aliases to pull in specific versions of Clojure:
 * `:master` -- Clojure 1.12.0-master-SNAPSHOT
-* `:1.12` -- Clojure 1.12.0-alpha2
+* `:1.12` -- Clojure 1.12.0-alpha3
 * `:1.11` -- Clojure 1.11.1 -- see [changes to Clojure in version 1.11.1](https://github.com/clojure/clojure/blob/master/changes.md)
   * `:1.11.0` -- Clojure 1.11.0
 * `:1.10` -- Clojure 1.10.3

deps.edn

@@ -105,9 +105,9 @@
   ;; latest 1.11 is 1.11.1 but you can ask for earlier versions:
   :1.11 {:override-deps {org.clojure/clojure {:mvn/version "1.11.1"}}}
   :1.11.0 {:override-deps {org.clojure/clojure {:mvn/version "1.11.0"}}}
-  ;; current 1.12 release is Alpha 2:
+  ;; current 1.12 release is Alpha 3:
   ;; - the functionality formerly requiring the :add-libs alias for the
   ;;   branch of tools.deps.alpha is now a part of clojure itself!
-  :1.12 {:override-deps {org.clojure/clojure {:mvn/version "1.12.0-alpha2"}}}
+  :1.12 {:override-deps {org.clojure/clojure {:mvn/version "1.12.0-alpha3"}}}
   ;; master is currently 1.12:
   :master {:override-deps {org.clojure/clojure {:mvn/version "1.12.0-master-SNAPSHOT"}}}}}