|WARNING| pw152269 [PATCH] ci: fix ccache for Ubuntu 22.04

[checkpatch at dpdk.org]

Test-Label: checkpatch
Test-Status: WARNING
http://dpdk.org/patch/152269

_coding style issues_


WARNING:BAD_SIGN_OFF: Do not use whitespace before Cc:
#100: FILE: .github/workflows/build.yml:47:
       CC: ccache ${{ matrix.config.compiler }}

ERROR:BAD_SIGN_OFF: Unrecognized email address: 'ccache ${{ matrix.config.compiler }}'
#100: FILE: .github/workflows/build.yml:47:
       CC: ccache ${{ matrix.config.compiler }}

total: 1 errors, 1 warnings, 14 lines checked