ci: try ignoring postinstall scripts

`sharp` postinstall script fails on node rc versions due to this strict semver check:

```
npm error sharp: Installation error: Expected Node.js version >=14.15.0 but found 24.0.0-rc.2
```

Author: serhalp

.github/workflows/e2e-tests.yml

@@ -46,7 +46,7 @@ jobs:
           version: 10
 
       - name: Install dependencies
-        run: npm ci --no-audit
+        run: npm ci --ignore-scripts --no-audit
 
       - name: Build project
         run: npm run build
@@ -98,7 +98,7 @@ jobs:
           version: 10
 
       - name: Install dependencies
-        run: npm ci --no-audit
+        run: npm ci --ignore-scripts --no-audit
 
       - name: Build project
         run: npm run build

.github/workflows/integration-tests.yml

@@ -62,7 +62,7 @@ jobs:
           deno-version: v1.44.4
 
       - name: Install core dependencies
-        run: npm ci --no-audit
+        run: npm ci --ignore-scripts --no-audit
 
       - name: Build project
         run: npm run build

.github/workflows/unit-tests.yml

@@ -35,7 +35,7 @@ jobs:
           check-latest: true
 
       - name: Install core dependencies
-        run: npm ci --no-audit
+        run: npm ci --ignore-scripts --no-audit
 
       - name: Build project
         run: npm run build