Migrate extension sources from pecl to pie

Port from feat/pgo-v3 (henderkes):
- switch 30 ext-*.yml sources from pecl to pie (packagist)
- PIE downloader: expand minified packagist p2 metadata and pick the
  newest stable release instead of the newest entry (may be RC/beta)
- PIE downloader: default extract path to php-src/ext/<name>, so
  per-extension extract lines are no longer needed

Kept from fix/spcconfig (not in pgo-v3): ext-imagick Windows support
and ext-zip depends@windows.

Deviation from pgo-v3: ext-xdebug keeps an explicit extract to a
standalone source/ext-xdebug dir. It is shared-only (build-static:
false) and cannot be built in-tree; extracting into php-src/ext would
let PHP's buildconf pick up its config.m4 and pollute the main
configure.

Author: crazywhalecc

config/pkg/ext/ext-amqp.yml

@@ -2,8 +2,8 @@ ext-amqp:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: amqp
+      type: pie
+      repo: php-amqp/php-amqp
     metadata:
       license-files: [LICENSE]
       license: PHP-3.01

config/pkg/ext/ext-apcu.yml

@@ -2,8 +2,8 @@ ext-apcu:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: APCu
+      type: pie
+      repo: apcu/apcu
     metadata:
       license-files: [LICENSE]
       license: PHP-3.01

config/pkg/ext/ext-ast.yml

@@ -2,8 +2,8 @@ ext-ast:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: ast
+      type: pie
+      repo: nikic/php-ast
     metadata:
       license-files: [LICENSE]
       license: BSD-3-Clause

config/pkg/ext/ext-dio.yml

@@ -2,8 +2,8 @@ ext-dio:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: dio
+      type: pie
+      repo: pecl/dio
     metadata:
       license-files: [LICENSE]
       license: PHP-3.01

config/pkg/ext/ext-ev.yml

@@ -2,8 +2,8 @@ ext-ev:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: ev
+      type: pie
+      repo: osmanov/pecl-ev
     metadata:
       license-files: [LICENSE]
       license: PHP-3.01

config/pkg/ext/ext-excimer.yml

@@ -2,8 +2,9 @@ ext-excimer:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: excimer
+      type: ghtagtar
+      repo: wikimedia/mediawiki-php-excimer
+      extract: php-src/ext/excimer
     metadata:
       license-files: [LICENSE]
       license: PHP-3.01

config/pkg/ext/ext-gearman.yml

@@ -2,8 +2,9 @@ ext-gearman:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: gearman
+      type: ghtar
+      repo: php/pecl-networking-gearman
+      extract: php-src/ext/gearman
     metadata:
       license-files: [LICENSE]
       license: PHP-3.01

config/pkg/ext/ext-grpc.yml

@@ -2,8 +2,8 @@ ext-grpc:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: grpc
+      type: pie
+      repo: grpc/grpc-php-ext
     metadata:
       license-files: [LICENSE]
       license: Apache-2.0

config/pkg/ext/ext-igbinary.yml

@@ -2,8 +2,10 @@ ext-igbinary:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: igbinary
+      type: ghtagtar
+      repo: igbinary/igbinary
+      match: tags/\d+(\.\d+)+$
+      extract: php-src/ext/igbinary
     metadata:
       license-files: [COPYING]
       license: BSD-3-Clause

config/pkg/ext/ext-imagick.yml

@@ -2,8 +2,8 @@ ext-imagick:
   type: php-extension
   artifact:
     source:
-      type: pecl
-      name: imagick
+      type: pie
+      repo: imagick/imagick
     metadata:
       license-files: [LICENSE]
       license: PHP-3.01