Add coverage badge + fix CI (#4550)

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           shared-key: "sanity"
-          save-if: ${{ github.ref_name == 'buildnet_wip' }}
+          save-if: ${{ github.ref_name == 'main' }}
       - uses: actions-rs/cargo@v1
         with:
           command: fmt
@@ -59,7 +59,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           shared-key: "check"
-          save-if: ${{ github.ref_name == 'buildnet_wip' }}
+          save-if: ${{ github.ref_name == 'main' }}
       - uses: arduino/setup-protoc@v1
         with:
           version: '3.x'
@@ -86,7 +86,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           shared-key: "clippy"
-          save-if: ${{ github.ref_name == 'buildnet_wip' }}
+          save-if: ${{ github.ref_name == 'main' }}
       - uses: arduino/setup-protoc@v1
         with:
           version: '3.x'
@@ -194,7 +194,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           shared-key: "massa"
-          save-if: ${{ github.ref_name == 'buildnet_wip' }}
+          save-if: ${{ github.ref_name == 'main' }}
       - uses: arduino/setup-protoc@v1
         with:
           version: '3.x'
@@ -277,7 +277,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           shared-key: "doc"
-          save-if: ${{ github.ref_name == 'buildnet_wip' }}
+          save-if: ${{ github.ref_name == 'main' }}
       - uses: arduino/setup-protoc@v1
         with:
           version: '3.x'

README.md

@@ -12,6 +12,7 @@
 [![Bors enabled](https://bors.tech/images/badge_small.svg)](https://app.bors.tech/repositories/39543)
 [![Docs](https://img.shields.io/static/v1?label=docs&message=massa&color=&style=flat)](https://massalabs.github.io/massa/massa_node/)
 [![Open in Gitpod](https://shields.io/badge/Gitpod-contribute-brightgreen?logo=gitpod&style=flat)](https://gitpod.io/#https://github.com/massalabs/massa)
+[![codecov](https://codecov.io/gh/massalabs/massa/graph/badge.svg?token=598URC32TV)](https://codecov.io/gh/massalabs/massa)
 
 ## About Massa