lint: Always run golangci-lint (#202)

There are sometimes non-Go files that affect linting (e.g., changes to
the linting workflow itself, as in #201) and realistically the longest
CI job is the e2e tests, so being efficient about linting isn't as
significant.

Co-authored-by: Alexander Bayandin <[email protected]>

Author: sharnoff

.github/workflows/lint.yml

@@ -17,20 +17,13 @@ jobs:
       - uses: actions/setup-go@v4
         with:
           go-version-file: 'go.mod'
-      - uses: technote-space/get-diff-action@v6
-        with:
-          PATTERNS: |
-            **/**.go
-            go.mod
-            go.sum
       - uses: golangci/golangci-lint-action@v3
         with:
           # Required: the version of golangci-lint is required and
           # should be specified with patch version.
           version: v1.52.2
           args: --timeout 5m --fix
           github-token: ${{ secrets.github_token }}
-        if: env.GIT_DIFF
 
       - name: go mod tidy
         run: |