Rework CI and project toolchain (#1043)

- remove `cargo-make` integration
- rework CI pipeline more granular and precise
- rework releasing process
- tune up project layout
- fill up new CHANGELOGs

Additionally:
- fix latest nightly/stable Rust inconsistencies

Author: tyranron

.github/dependabot.yml

@@ -1,34 +1,11 @@
 version: 2
 updates:
-- package-ecosystem: cargo
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
-  ignore:
-  - dependency-name: warp
-    versions:
-    - 0.3.0
-    - 0.3.1
-  - dependency-name: tokio
-    versions:
-    - 1.1.0
-    - 1.2.0
-    - 1.3.0
-    - 1.4.0
-  - dependency-name: actix
-    versions:
-    - 0.11.0
-  - dependency-name: actix-rt
-    versions:
-    - 2.0.0
-    - 2.1.0
-  - dependency-name: bytes
-    versions:
-    - 1.0.0
-  - dependency-name: hyper
-    versions:
-    - 0.14.1
-  - dependency-name: rand
-    versions:
-    - 0.8.0
+  - package-ecosystem: cargo
+    directory: /
+    schedule:
+      interval: daily
+
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily