Bump to 1.21.2 so the new diagnostics identify themselves

The reporter already has a build calling itself 1.21.1. Sending him a
second one that logs differently under the same version would put us back
where the last two rounds were spent — unable to tell from a log which
build wrote it.

The installer's staleness guard does not cover this: it compares the
packaged binary's version against MyAppVersion, which catches a stale exe
but not a same-version rebuild.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

resources/InnoInstallerScript.iss

@@ -3,7 +3,7 @@
 ; Non-commercial use only
 
 #define MyAppName "SteamlessController"
-#define MyAppVersion "1.21.1"
+#define MyAppVersion "1.21.2"
 #define ViGEmSetup "ViGEmBus_1.22.0_x64_x86_arm64.exe"
 #define MyAppPublisher "Dylan Deverill"
 #define MyAppURL "https://github.com/ddeverill/SteamlessController"

resources/resource.h

@@ -14,5 +14,5 @@
 // Keep in step with MyAppVersion in resources/InnoInstallerScript.iss.
 #define APP_VERSION_MAJOR 1
 #define APP_VERSION_MINOR 21
-#define APP_VERSION_PATCH 1
-#define APP_VERSION_STR   "1.21.1"
+#define APP_VERSION_PATCH 2
+#define APP_VERSION_STR   "1.21.2"