Fix Appveyor php version error

[absci]

sha256sum file can have multiple PHP entries, select the first match.

[codecov]

Codecov Report

Merging #1379 (6d4e6e3) into dev (0997c25) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev    #1379   +/-   ##
=======================================
  Coverage   83.63%   83.63%           
=======================================
  Files          22       22           
  Lines        7829     7829           
=======================================
  Hits         6548     6548           
  Misses       1281     1281           

Impacted Files	Coverage Δ
...-8.0.15-src/ext/pdo_sqlsrv/shared/core_results.cpp
...phpdev/vs16/x86/php-8.0.15-src/ext/sqlsrv/util.cpp
...php-8.0.15-src/ext/pdo_sqlsrv/php_pdo_sqlsrv_int.h
...s16/x86/php-8.0.15-src/ext/pdo_sqlsrv/pdo_stmt.cpp
...s16/x86/php-8.0.15-src/ext/pdo_sqlsrv/pdo_util.cpp
...phpdev/vs16/x86/php-8.0.15-src/ext/sqlsrv/conn.cpp
...phpdev/vs16/x86/php-8.0.15-src/ext/sqlsrv/init.cpp
.../php-8.0.15-src/ext/sqlsrv/shared/core_results.cpp
...s16/x86/php-8.0.15-src/ext/pdo_sqlsrv/pdo_init.cpp
...s16/x86/php-8.0.15-src/ext/sqlsrv/php_sqlsrv_int.h
... and 34 more