refactor: update handle_cast :resume to manage paused state

- Modified the `handle_cast(:resume)` function in multiple modules to check for the `paused` state before resuming polling.
- Added a new clause to return the current state without changes if not paused, improving state management and clarity.

Author: zcesur

lib/algora/integrations/github/poller/comments.ex

@@ -70,11 +70,16 @@ defmodule Algora.Github.Poller.Comments do
   end
 
   @impl true
-  def handle_cast(:resume, state) do
+  def handle_cast(:resume, %{paused: true} = state) do
     schedule_poll()
     {:noreply, %{state | paused: false}}
   end
 
+  @impl true
+  def handle_cast(:resume, state) do
+    {:noreply, state}
+  end
+
   @impl true
   def handle_call(:get_repo_info, _from, state) do
     {:reply, {state.repo_owner, state.repo_name}, state}

lib/algora/integrations/github/poller/events.ex

@@ -72,11 +72,16 @@ defmodule Algora.Github.Poller.Events do
   end
 
   @impl true
-  def handle_cast(:resume, state) do
+  def handle_cast(:resume, %{paused: true} = state) do
     schedule_poll()
     {:noreply, %{state | paused: false}}
   end
 
+  @impl true
+  def handle_cast(:resume, state) do
+    {:noreply, state}
+  end
+
   defp schedule_poll do
     Process.send_after(self(), :poll, @poll_interval)
   end

lib/algora/integrations/github/poller/search.ex

@@ -70,11 +70,16 @@ defmodule Algora.Github.Poller.Search do
   end
 
   @impl true
-  def handle_cast(:resume, state) do
+  def handle_cast(:resume, %{paused: true} = state) do
     schedule_poll()
     {:noreply, %{state | paused: false}}
   end
 
+  @impl true
+  def handle_cast(:resume, state) do
+    {:noreply, state}
+  end
+
   @impl true
   def handle_call(:get_provider, _from, state) do
     {:reply, state.provider, state}