multi-lang CI: install tools per job

.gitea/workflows/ci.yml

@@ -9,19 +9,28 @@ jobs:
     runs-on: go
     steps:
       - uses: actions/checkout@v4
-      - run: go version
+      - name: Install Go
+        run: |
+          apt-get update -qq && apt-get install -y -qq golang-go
+          go version
 
   rust:
     runs-on: rust
     steps:
       - uses: actions/checkout@v4
-      - run: rustc --version
+      - name: Install Rust
+        run: |
+          apt-get update -qq && apt-get install -y -qq rustc cargo
+          rustc --version
 
   java:
     runs-on: java
     steps:
       - uses: actions/checkout@v4
-      - run: java --version
+      - name: Install Java
+        run: |
+          apt-get update -qq && apt-get install -y -qq openjdk-17-jdk-headless
+          java --version
 
   python:
     runs-on: python
@@ -33,7 +42,10 @@ jobs:
     runs-on: php
     steps:
       - uses: actions/checkout@v4
-      - run: php --version
+      - name: Install PHP
+        run: |
+          apt-get update -qq && apt-get install -y -qq php-cli
+          php --version
 
   node:
     runs-on: ubuntu-latest