Update Jakarta EE promo ad images

Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/promo/images/jakartaee-community-call.png b/promo/images/jakartaee-community-call.png
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+++ b/promo/images/jakartaee-community-call.png
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diff --git a/promo/images/jakartaee-tech-talk.png b/promo/images/jakartaee-tech-talk.png
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index 0000000..986ee64
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+++ b/promo/images/jakartaee-tech-talk.png
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