fix: `make deps` should check PCRE header in openresty-pcre-devel

[kenhys]

Description

Already header file for OpenSSL (openresty-openssl111-devel) is checked, so do same thing for PCRE.

Without this fix, even though openresty-pcre-devel is installed, make deps fails like this:

Error: Failed installing dependency: https://luarocks.org/jsonschema-0.9.8-0.src.rock - Failed installing dependency: https://luarocks.org/lrexlib-pcre-2.9.1-1.src.rock - Could not find header file for PCRE No file pcre.h in /usr/local/include No file pcre.h in /usr/include No file pcre.h in /include You may have to install PCRE in your system and/or pass PCRE_DIR or PCRE_INCDIR to the luarocks command. Example: luarocks install lrexlib-pcre PCRE_DIR=/usr/local

Checklist

• [x] I have explained the need for this PR and the problem it solves
• [x] I have explained the changes or the new features added to this PR
• [ ] I have added tests corresponding to this change
• [ ] I have updated the documentation to reflect this change
• [ ] I have verified that this change is backward compatible (If not, please discuss on the APISIX mailing list first)

NOTE: utils/install-dependencies.sh or ci/centos7-ci.sh explicitly installs pcre-devel instead of openresty-pcre-devel, does it intentional?

[spacewander]

Please make the CI pass, thanks!

[kenhys]

@spacewander could you allow running workflows?

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