Run most CI checks on all branches

But still only on the same paths (and ignoring tags) as before.

.github/workflows/ci.yml

@@ -4,32 +4,7 @@ env:
   CARGO_TERM_COLOR: always
   CLICOLOR: 1
 
-on:
-  push:
-    branches: [ main ]
-    tags-ignore: [ '*' ]
-    paths:
-      - '.github/**'
-      - 'ci/**'
-      - 'etc/**'
-      - 'src/**'
-      - 'tests/**'
-      - 'cargo-*/**'
-      - 'gix*/**'
-      - '*.toml'
-      - Makefile
-  pull_request:
-    branches: [ main ]
-    paths:
-      - '.github/**'
-      - 'ci/**'
-      - 'etc/**'
-      - 'src/**'
-      - 'tests/**'
-      - 'cargo-*/**'
-      - 'gix*/**'
-      - '*.toml'
-      - Makefile
+on: [push, pull_request, workflow_dispatch]
 
 jobs:
   pure-rust-build: