Tidy up workflows

Author: johnlees

.github/workflows/codecov.yml

@@ -32,13 +32,13 @@ jobs:
         RUSTDOCFLAGS: '-Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cinstrument-coverage'
 
     - name: Codecov
-        # You may pin to the exact commit or the version.
-        uses: codecov/[email protected]
-        with:
-          # Repository upload token - get it from codecov.io. Required only for private repositories
-          token: ${{ secrets.CODECOV_TOKEN }}
-          file: ./lcov.info
-          # Specify whether the Codecov output should be verbose
-          verbose: true
-          fail_ci_if_error: true
+      # You may pin to the exact commit or the version.
+      uses: codecov/[email protected]
+      with:
+        # Repository upload token - get it from codecov.io. Required only for private repositories
+        token: ${{ secrets.CODECOV_TOKEN }}
+        file: ./lcov.info
+        # Specify whether the Codecov output should be verbose
+        verbose: true
+        fail_ci_if_error: true
 

.github/workflows/release.yml

@@ -4,8 +4,6 @@ on:
   push:
     tags:
       - "v*.*.*"
-    branches:
-      - release_testing
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/version.yml

@@ -1,7 +1,7 @@
 on:
   pull_request:
     branches:
-      - master
+      - main
 
 # This runs on PRs so error can be seen before merging
 name: Version check