chore: better versioning

now it's <next-version>-dev rather than keeping previous version until
we make a release. i'm not sure what to do with inner crates: those
versions aren't really visible and managing ALL crates version would be
hell, but also ignoring all these feels very much arbitrary. idk

Cargo.lock

@@ -5192,7 +5192,7 @@ dependencies = [
 
 [[package]]
 name = "upub-bin"
-version = "0.5.0"
+version = "0.5.1-dev"
 dependencies = [
  "clap",
  "futures",
@@ -5267,7 +5267,7 @@ dependencies = [
 
 [[package]]
 name = "upub-web"
-version = "0.5.0"
+version = "0.5.1-dev"
 dependencies = [
  "apb",
  "base64",

Cargo.toml

@@ -14,7 +14,7 @@ members = [
 
 [package]
 name = "upub-bin"
-version = "0.5.0"
+version = "0.5.1-dev"
 edition = "2021"
 authors = [ "alemi <me@alemi.dev>" ]
 description = "Traits and types to handle ActivityPub objects"

web/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "upub-web"
-version = "0.5.0"
+version = "0.5.1-dev"
 edition = "2021"
 authors = [ "alemi <me@alemi.dev>" ]
 description = "web frontend for upub"