Fix drone build pipeline (#1)

#### 📖 Summary

- fixes dependency for loading the module itself
- adds gitea user as parameter -> deletes old PR comments.

#### 📑 Test Plan

> 💡 Select your test plan for the code changes.

- [x] Tested via Drone.io pipeline
- [ ] Custom test
- [ ] No test plan

##### Details / Justification

<!-- Add your test details or justification for missing tests here. -->

#### 📚 Additional Notes

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Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: #1

tools/DevDependency.psm1

@@ -0,0 +1,64 @@
+function Invoke-FixDevDependency {
+    <#
+    .SYNOPSIS
+        Installs dev dependencies.
+
+    .DESCRIPTION
+        Invoke-FixDevDependency acts as workaround to load the dependencies needed to load the pwsh module.
+        This is just standalone version of the embedded `Invoke-InstallDependency` which can't be called
+        by the DroneHelper build pipeline itself.
+    #>
+
+    [CmdletBinding()]
+    param ()
+
+    process {
+        try {
+            $PSScriptParams = @{
+                Name               = 'PSScriptAnalyzer'
+                Scope              = 'CurrentUser'
+                RequiredVersion    = '1.20.0'
+                Force              = $true
+                SkipPublisherCheck = $true
+                AllowClobber       = $true
+                Verbose            = $VerbosePreference
+                ErrorAction        = 'Stop'
+            }
+            Install-Module @PSScriptParams
+
+            $PesterParams = @{
+                Name               = 'Pester'
+                Scope              = 'CurrentUser'
+                RequiredVersion    = '5.3.1'
+                Force              = $true
+                SkipPublisherCheck = $true
+                AllowClobber       = $true
+                Verbose            = $VerbosePreference
+                ErrorAction        = 'Stop'
+            }
+            Install-Module @PesterParams
+
+            $PoshParams = @{
+                Name               = 'posh-git'
+                Scope              = 'CurrentUser'
+                RequiredVersion    = '1.1.0'
+                Force              = $true
+                SkipPublisherCheck = $true
+                AllowClobber       = $true
+                Verbose            = $VerbosePreference
+                ErrorAction        = 'Stop'
+            }
+            Install-Module @PoshParams
+        }
+        catch {
+            $ExecParams = @{
+                Exception   = [System.Exception]::new(
+                    'Could not install required build dependencies!',
+                    $PSItem.Exception
+                )
+                ErrorAction = 'Stop'
+            }
+            Write-Error @ExecParams
+        }
+    }
+}