Add spec/pg_spec.rb to tests

.. which wasn't tested in CI.

We could use `rake test` instead, but it starts a separate `rspec` process, which doesn't respect our early load `-rpg`.
Instead it uses the git checkout for lib files and not the files installed from the native binary gem.
This in turn doesn't set POSTGRESQL_LIB_PATH correctly.

Author: larskanis

.github/workflows/binary-gems.yml

@@ -142,12 +142,12 @@ jobs:
       - run: echo $env:PATH
       - name: Run specs
         if: ${{ matrix.os != 'windows-latest' }}
-        run: ruby -rpg -S rspec -fd spec/**/*_spec.rb
+        run: ruby -rpg -S rspec -fd spec/*_spec.rb spec/**/*_spec.rb
       - name: Run specs
         if: ${{ matrix.os == 'windows-latest' }}
         run: |
           ridk enable
-          ruby -rpg -S rspec -fd spec/**/*_spec.rb
+          ruby -rpg -S rspec -fd spec/*_spec.rb spec/**/*_spec.rb
 
       - name: Print logs if job failed
         if: ${{ failure() && matrix.os == 'windows-latest' }}

.github/workflows/source-gem.yml

@@ -147,7 +147,7 @@ jobs:
           PG_DEBUG: 0
           # Temprary fix only for Truffleruby-24.0.0:
           TRUFFLERUBYOPT: --experimental-options --keep-handles-alive
-        run: ruby -rpg -S rspec spec/**/*_spec.rb -cfdoc
+        run: ruby -rpg -S rspec spec/*_spec.rb spec/**/*_spec.rb -cfdoc
 
       - name: Print db logs if job failed
         if: ${{ failure() && matrix.os == 'windows' }}

spec/env/Dockerfile.alpine

@@ -25,4 +25,4 @@ CMD ruby -v && \
   bundle config set --local without 'development' && \
   bundle install && \
   sudo -u postgres ruby -rpg -e "p RUBY_DESCRIPTION, PG::VERSION, PG::POSTGRESQL_LIB_PATH, PG::IS_BINARY_GEM, PG::BUNDLED_LIBPQ_WITH_UNIXSOCKET; puts PG.connect.exec('SELECT version()').values; p PG.connect.host" && \
-  sudo -u postgres ruby -rpg -S rspec -fd spec/**/*_spec.rb
+  sudo -u postgres ruby -rpg -S rspec -fd spec/*_spec.rb spec/**/*_spec.rb

spec/env/Dockerfile.centos

@@ -24,4 +24,4 @@ CMD ruby -v && \
   bundle config set --local without 'development' && \
   bundle install && \
   sudo -u postgres ruby -rpg -e "p RUBY_DESCRIPTION, PG::VERSION, PG::POSTGRESQL_LIB_PATH, PG::IS_BINARY_GEM, PG::BUNDLED_LIBPQ_WITH_UNIXSOCKET; puts PG.connect.exec('SELECT version()').values; p PG.connect.host" && \
-  sudo -u postgres ruby -rpg -S rspec -fd spec/**/*_spec.rb
+  sudo -u postgres ruby -rpg -S rspec -fd spec/*_spec.rb spec/**/*_spec.rb