manifest: Bump version to v1.3-alpha

Finally, I've learned my lesson and on development trees I'll start
using prefixed version numbers in order to not cause confusions.

Cargo.lock

@@ -179,9 +179,9 @@ dependencies = [
 
 [[package]]
 name = "fs_extra"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
+checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
 
 [[package]]
 name = "generic-array"
@@ -638,7 +638,7 @@ checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"
 
 [[package]]
 name = "vento"
-version = "1.2.0"
+version = "1.3.0-alpha"
 dependencies = [
  "anyhow",
  "colored",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "vento"
-version = "1.2.0"
+version = "1.3.0-alpha"
 edition = "2021"
 readme = "README.md"
 
@@ -18,7 +18,7 @@ build = "build.rs"
 [dependencies]
 dirs = "4.0.0"
 colored = "2.0.0"
-fs_extra = "1.2.0"
+fs_extra = "1.3"
 anyhow = "1.0"
 size_format = "1.0.2"
 config = "0.13.1"