refactor: rename test files (#481)

this bothered me: the names were very unclear to new devs.

.github/workflows/integration-tests.yml

@@ -1,4 +1,4 @@
-name: Run Tests
+name: Integration Tests
 
 on:
   push:

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
   publish-builder:
     runs-on: ubuntu-latest
     steps:
-      # duplicated on the run_tests.yml job, keep these in sync
+      # duplicated on the integration-tests.yml job, keep these in sync
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - uses: jdx/mise-action@5228313ee0372e111a38da051671ca30fc5a96db
       - uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130
@@ -58,7 +58,7 @@ jobs:
     env:
       IMAGE_NAME: ${{ github.repository }}-runtime
     steps:
-      # duplicated on the run_tests.yml job, keep these in sync
+      # duplicated on the integration-tests.yml job, keep these in sync
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - uses: jdx/mise-action@5228313ee0372e111a38da051671ca30fc5a96db
       - uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130

.github/workflows/unit-tests.yml

@@ -1,4 +1,4 @@
-name: CI
+name: Linting, Formatting, and Unit Tests
 
 # Security: Actions are pinned to commit SHAs instead of tags/versions where possible.
 # Tags are mutable and can be force-pushed, allowing attackers to replace trusted

README.md

@@ -1,7 +1,7 @@
 # Railpack
 
-[![CI](https://github.com/railwayapp/railpack/actions/workflows/ci.yml/badge.svg)](https://github.com/railwayapp/railpack/actions/workflows/ci.yml)
-[![Run Tests](https://github.com/railwayapp/railpack/actions/workflows/run_tests.yml/badge.svg)](https://github.com/railwayapp/railpack/actions/workflows/run_tests.yml)
+[![CI](https://github.com/railwayapp/railpack/actions/workflows/unit-tests.yml/badge.svg)](https://github.com/railwayapp/railpack/actions/workflows/unit-tests.yml)
+[![Run Tests](https://github.com/railwayapp/railpack/actions/workflows/integration-tests.yml/badge.svg)](https://github.com/railwayapp/railpack/actions/workflows/integration-tests.yml)
 
 Railpack is a tool for building images from source code with minimal
 configuration. It is the successor to [Nixpacks](https://nixpacks.com) and

RELEASE.md

@@ -14,8 +14,9 @@ This document outlines the process for creating new releases of Railpack.
 2. Create and push a new tag with the version number:
 
    ```bash
-   git tag v1.2.3  # Replace with your version number
-   git push origin --tags
+   git fetch origin # or upstream, if you aren't using a fork
+   git tag v1.2.3 origin/main  # Replace with your version number
+   git push origin v1.2.3
    ```
 
 3. The [release