[TASK] Always use the latest Composer V2 (#994)

This saves us changes to the configuration files each time a new
Composer major version is released.

.ddev/config.yaml

@@ -19,7 +19,7 @@ hooks:
 omit_containers: [dba, ddev-ssh-agent]
 webimage_extra_packages: [parallel]
 use_dns_when_possible: true
-composer_version: "2.4"
+composer_version: "2"
 web_environment:
 - typo3DatabaseName=typo3
 - typo3DatabaseHost=db

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           php-version: "${{ matrix.php-version }}"
           coverage: none
-          tools: composer:v2.6
+          tools: composer:v2
       - name: "Show the Composer configuration"
         run: "composer config --global --list"
       - name: "Run PHP lint"
@@ -48,7 +48,7 @@ jobs:
         with:
           php-version: "${{ matrix.php-version }}"
           coverage: none
-          tools: composer:v2.6
+          tools: composer:v2
       - name: "Show Composer version"
         run: "composer --version"
       - name: "Show the Composer configuration"
@@ -113,7 +113,7 @@ jobs:
         with:
           php-version: "${{ matrix.php-version }}"
           coverage: none
-          tools: composer:v2.6
+          tools: composer:v2
       - name: "Show Composer version"
         run: "composer --version"
       - name: "Show the Composer configuration"
@@ -210,7 +210,7 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: "${{ matrix.php-version }}"
-          tools: composer:v2.6
+          tools: composer:v2
           extensions: mysqli
           coverage: none
       - name: "Show Composer version"

.github/workflows/predefined.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           php-version: "${{ matrix.php-version }}"
           coverage: none
-          tools: composer:v2.6
+          tools: composer:v2
       - name: "Run PHP lint"
         run: "composer ci:php:lint"
     strategy:
@@ -97,7 +97,7 @@ jobs:
         with:
           php-version: "${{ matrix.php-version }}"
           coverage: none
-          tools: composer:v2.6
+          tools: composer:v2
       - name: "Show Composer version"
         run: composer --version
       - name: "Cache dependencies installed with composer"
@@ -154,7 +154,7 @@ jobs:
         with:
           php-version: "${{ matrix.php-version }}"
           coverage: none
-          tools: composer:v2.6
+          tools: composer:v2
       - name: "Show Composer version"
         run: composer --version
       - name: "Cache dependencies installed with composer"
@@ -237,7 +237,7 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: "${{ matrix.php-version }}"
-          tools: composer:v2.6
+          tools: composer:v2
           extensions: mysqli
           coverage: none
       - name: "Show Composer version"